(Document certified by Superintendent of Documents <[email protected]>) Signed by Superintendent of Documents <[email protected]> Time: 2010.12.30 03:10:25 -05'00' Reason: GPO attests that this document has not been altered since it was disseminated by GPO Location: US GPO, Washington, DC 20401
83.19
(e) A new designation of the Secretary
under this section will take effect
30 calendar days after the date on
which the report of the Secretary
under paragraph (d) of this section is
submitted to Congress, unless Congress
takes an action that reverses or expedites
the designation. Such new designations
and related congressional actions
will be further reported by the
Secretary pursuant to paragraphs (d)
and (e) of 83.17.
[70 FR 75953, Dec. 22, 2005]
83.19 How can the Secretary cancelor modify a final decision to add aclass of employees to the Cohort?
(a) The Secretary can cancel a final
decision to add a class to the Cohort,
or can modify a final decision to reduce
the scope of a class added by the Secretary,
if HHS obtains records relevant
to radiation exposures of members of
the class that enable NIOSH to estimate
the radiation doses incurred by
individual members of the class
through dose reconstructions conducted
under the requirements of 42
CFR part 82.
(b) Before canceling a final decision
to add a class or modifying a final decision
to reduce the scope of a class, the
Secretary intends to follow evaluation
procedures that are substantially similar
to those described in this part for
adding a class of employees to the Cohort.
The procedures will include the
following:
(1) Publication of a notice in the FEDERAL
REGISTER informing the public of
the intent of the Secretary to review
the final decision on the basis of new
information and describing procedures
for this review;
(2) An analysis by NIOSH of the utility
of the new information for conducting
dose reconstructions under 42
CFR part 82; the analysis will be performed
consistently with the requirements
for analysis of a petition by
NIOSH under 83.13(c)(1) and (2), and
83.13(c)(2) and (3);
(3) A recommendation by the Board
to the Secretary as to whether or not
the Secretary should cancel or modify
his final decision that added the class
to the Cohort, based upon a review by
the Board of the NIOSH analysis under
paragraph (b)(2) of this section and any
42 CFR Ch. I (10110 Edition)
other relevant information considered
by the Board;
(4) An opportunity for members of
the class to contest a proposed decision
to cancel or modify the prior final decision
that added the class to the Cohort,
including a reasonable and timely effort
by the Secretary to notify members
of the class of this opportunity;
and
(5) Publication in the FEDERAL REGISTER
of a final decision to cancel or
modify the prior final decision that
added the class to the Cohort.
[69 FR 30780, May 28, 2004. Redesignated at 70
FR 75953, Dec. 22, 2005]
PART 84APPROVAL OF
RESPIRATORY PROTECTIVE DEVICES
Subpart AGeneral Provisions
Sec.
84.1 Purpose.
84.2 Definitions.
84.3
Respirators for mine rescue or other
emergency use in mines.
Subpart BApplication for Approval
84.10 Application procedures.
84.11 Contents of application.
84.12
Delivery of respirators and components
by applicant; requirements.
Subpart CFees
84.20
Examination, inspection, and testing
of complete respirator assemblies; fees.
84.21
Examination, inspection, and testing
of respirator components or subassemblies;
fees.
84.22
Unlisted fees; additional fees; payment
by applicant prior to approval.
Subpart DApproval and Disapproval
84.30
Certificates of approval; scope of approval.
84.31 Certificates of approval; contents.
84.32 Notice of disapproval.
84.33
Approval labels and markings; approval
of contents; use.
84.34 Revocation of certificates of approval.
84.35
Changes or modifications of approved
respirators; issuance of modification of
certificate of approval.
84.36
Delivery of changed or modified approved
respirator.
Subpart EQuality Control
84.40
Quality control plans; filing requirements.
84.41 Quality control plans; contents.
542
Public Health Service, HHS
84.42
Proposed quality control plans; approval
by the Institute.
84.43
Quality control records; review by the
Institute; revocation of approval.
Subpart FClassification of Approved Respirators;
Scope of Approval; Atmospheric
Hazards; Service Time
84.50
Types of respirators to be approved;
scope of approval.
84.51
Entry and escape, or escape only; classification.
84.52 Respiratory hazards; classification.
84.53 Service time; classification.
Subpart GGeneral Construction and
Performance Requirements
84.60
Construction and performance requirements;
general.
84.61 General construction requirements.
84.62
Component parts; minimum requirements.
84.63 Test requirements; general.
84.64
Pretesting by applicant; approval of
test methods.
84.65
Conduct of examinations, inspections,
and tests by the Institute; assistance by
applicant; observers; recorded data; public
demonstrations.
84.66
Withdrawal of applications; refund of
fees.
Subpart HSelf-Contained Breathing
Apparatus
84.70
Self-contained breathing apparatus;
description.
84.71
Self-contained breathing apparatus;
required components.
84.72
Breathing tubes; minimum requirements.
84.73
Harnesses; installation and construction;
minimum requirements.
84.74
Apparatus containers; minimum requirements.
84.75
Half-mask facepieces, full facepieces,
mouthpieces; fit; minimum requirements.
84.76
Facepieces; eyepieces; minimum requirements.
84.77
Inhalation and exhalation valves; minimum
requirements.
84.78
Head harnesses; minimum requirements.
84.79
Breathing gas; minimum requirements.
84.80
Interchangeability of oxygen and air
prohibited.
84.81
Compressed breathing gas and liquefied
breathing gas containers; minimum
requirements.
84.82
Gas pressure gages; minimum requirements.
Pt. 84
84.83
Timers; elapsed time indicators; remaining
service life indicators; minimum
requirements.
84.84
Hand-operated valves; minimum requirements.
84.85
Breathing bags; minimum requirements.
84.86
Component parts exposed to oxygen
pressures; minimum requirements.
84.87
Compressed gas filters; minimum requirements.
84.88 Breathing bag test.
84.89 Weight requirement.
84.90 Breathing resistance test; inhalation.
84.91 Breathing resistance test; exhalation.
84.92 Exhalation valve leakage test.
84.93 Gas flow test; open-circuit apparatus.
84.94
Gas flow test; closed-circuit apparatus.
84.95
Service time test; open-circuit apparatus.
84.96
Service time test; closed-circuit apparatus.
84.97
Test for carbon dioxide in inspired gas;
open- and closed-circuit apparatus; maximum
allowable limits.
84.98
Tests during low temperature operation.
84.99
Man tests; testing conditions; general
requirements.
84.100 Man tests 1, 2, 3, and 4; requirements.
84.101 Man test 5; requirements.
84.102 Man test 6; requirements.
84.103 Man tests; performance requirements.
84.104 Gas tightness test; minimum requirements.
TABLES TO SUBPART H OF PART 84
Subpart IGas Masks
84.110 Gas masks; description.
84.111 Gas masks; required components.
84.112
Canisters and cartridges in parallel;
resistance requirements.
84.113
Canisters and cartridges; color and
markings; requirements.
84.114
Filters used with canisters and cartridges;
location; replacement.
84.115
Breathing tubes; minimum requirements.
84.116
Harnesses; installation and construction;
minimum requirements.
84.117
Gas mask containers; minimum requirements.
84.118
Half-mask facepieces, full facepieces,
and mouthpieces; fit; minimum requirements.
84.119
Facepieces; eyepieces; minimum requirements.
84.120
Inhalation and exhalation valves;
minimum requirements.
84.121
Head harnesses; minimum requirements.
84.122
Breathing resistance test; minimum
requirements.
84.123 Exhalation valve leakage test.
543
Pt. 84
84.124
Facepiece tests; minimum requirements.
84.125
Particulate tests; canisters containing
particulate filters; minimum requirements.
84.126 Canister bench tests; minimum requirements.
TABLES TO SUBPART I OF PART 84
Subpart JSupplied-Air Respirators
84.130 Supplied-air respirators; description.
84.131
Supplied-air respirators; required
components.
84.132
Breathing tubes; minimum requirements.
84.133
Harnesses; installation and construction;
minimum requirements.
84.134
Respirator containers; minimum requirements.
84.135
Half-mask facepieces, full facepieces,
hoods, and helmets; fit; minimum requirements.
84.136
Facepieces, hoods, and helmets; eyepieces;
minimum requirements.
84.137
Inhalation and exhalation valves;
check valves; minimum requirements.
84.138
Head harnesses; minimum requirements.
84.139
Head and neck protection; supplied-
air respirators; minimum requirements.
84.140
Air velocity and noise levels; hoods
and helmets; minimum requirements.
84.141
Breathing gas; minimum requirements.
84.142
Air supply source; hand-operated or
motor driven air blowers; Type A sup-
plied-air respirators; minimum requirements.
84.143
Terminal fittings or chambers; Type
B supplied-air respirators; minimum requirements.
84.144
Hand-operated blower test; minimum
requirements.
84.145
Motor-operated blower test; minimum
requirements.
84.146
Method of measuring the power and
torque required to operate blowers.
84.147
Type B supplied-air respirator; minimum
requirements.
84.148
Type C supplied-air respirator, con-
tinuous-flow class; minimum requirements.
84.149
Type C supplied-air respirator, demand
and pressure demand class; minimum
requirements.
84.150
Air-supply line tests; minimum requirements.
84.151 Harness test; minimum requirements.
84.152
Breathing tube test; minimum requirements.
84.153
Airflow resistance test, Type A and
Type AE supplied-air respirators; minimum
requirements.
84.154
Airflow resistance test; Type B and
Type BE supplied-air respirators; minimum
requirements.
42 CFR Ch. I (10110 Edition)
84.155
Airflow resistance test; Type C sup-
plied-air respirator, continuous flow
class and Type CE supplied-air respirator;
minimum requirements.
84.156
Airflow resistance test; Type C sup-
plied-air respirator, demand class; minimum
requirements.
84.157
Airflow resistance test; Type C sup-
plied-air respirator, pressure-demand
class; minimum requirements.
84.158 Exhalation valve leakage test.
84.159
Man tests for gases and vapors; sup-
plied-air respirators; general performance
requirements.
84.160
Man test for gases and vapors; Type A
and Type AE respirators; test requirements.
84.161
Man tests for gases and vapors; Type
B and Type BE respirators; test requirements.
84.162
Man test for gases and vapors; Type C
respirators, continuous-flow class and
Type CE supplied-air respirators; test requirements.
84.163
Man test for gases and vapors; Type C
supplied-air respirators, demand and
pressure-demand classes; test requirements.
TABLES TO SUBPART J OF PART 84
Subpart KNon-Powered Air-Purifying
Particulate Respirators
84.170
Non-powered air-purifying particulate
respirators; description.
84.171
Non-powered air-purifying particulate
respirators; required components.
84.172
Breathing tubes; minimum requirements.
84.173
Harnesses; installation and construction;
minimum requirements.
84.174
Respirator containers; minimum requirements.
84.175
Half-mask facepieces, full facepieces,
hoods, helmets, and mouthpieces; fit;
minimum requirements.
84.176
Facepieces, hoods, and helmets; eyepieces;
minimum requirements.
84.177
Inhalation and exhalation valves;
minimum requirements.
84.178
Head harnesses; minimum requirements.
84.179
Non-powered air-purifying particulate
respirators; filter identification.
84.180 Airflow resistance tests.
84.181
Non-powered air-purifying particulate
filter efficiency level determination.
84.182
Exhalation valve leakage test; minimum
requirements.
Subpart LChemical Cartridge Respirators
84.190
Chemical cartridge respirators: description.
84.191
Chemical cartridge respirators; required
components.
544
Public Health Service, HHS
84.192
Cartridges in parallel; resistance requirements.
84.193
Cartridges; color and markings; requirements.
84.194
Filters used with chemical cartridges;
location; replacement.
84.195
Breathing tubes; minimum requirements.
84.196
Harnesses; installation and construction;
minimum requirements.
84.197
Respirator containers; minimum requirements.
84.198
Half-mask facepieces, full facepieces,
mouthpieces, hoods, and helmets; fit;
minimum requirements.
84.199
Facepieces, hoods, and helmets; eyepieces;
minimum requirements.
84.200
Inhalation and exhalation valves;
minimum requirements.
84.201
Head harnesses; minimum requirements.
84.202
Air velocity and noise levels; hoods
and helmets; minimum requirements.
84.203
Breathing resistance test; minimum
requirements.
84.204
Exhalation valve leakage test; minimum
requirements.
84.205
Facepiece test; minimum requirements.
84.206
Particulate tests; respirators with filters;
minimum requirements; general.
84.207 Bench tests; gas and vapor tests; minimum
requirements; general.
TABLES TO SUBPART L OF PART 84
Subpart M [Reserved]
Subpart NSpecial Use Respirators
84.250
Vinyl chloride respirators; description.
84.251 Required components.
84.252 Gas masks; requirements and tests.
84.253
Chemical-cartridge respirators; requirements
and tests.
84.254
Powered air-purifying respirators; requirements
and tests.
84.255
Requirements for end-of-service-life
indicator.
84.256 Quality control requirements.
84.257 Labeling requirements.
84.258 Fees.
Subparts OJJ [Reserved]
Subpart KKDust, Fume, and Mist; Pesticide;
Paint Spray; Powered Air-Purifying
High Efficiency Respirators and
Combination Gas Masks
84.1100 Scope and effective dates.
84.1101 Definitions.
84.1102 Examination, inspection and testing
of complete respirator assemblies; fees.
84.1103 Approval labels and markings; approval
of contents; use.
84.1130 Respirators; description.
Pt. 84
84.1131 Respirators; required components.
84.1132 Breathing tubes; minimum requirements.
84.1133 Harnesses; installation and construction;
minimum requirements.
84.1134 Respirator containers; minimum requirements.
84.1135 Half-mask facepieces, full facepieces,
hoods, helmets, and mouthpieces; fit;
minimum requirements.
84.1136 Facepieces, hoods, and helmets; eyepieces;
minimum requirements.
84.1137 Inhalation and exhalation valves;
minimum requirements.
84.1138 Head harnesses; minimum requirements.
84.1139 Air velocity and noise levels; hoods
and helmets; minimum requirements.
84.1140 Dust, fume, and mist respirators;
performance requirements; general.
84.1141 Isoamyl acetate tightness test; dust,
fume, and mist respirators designed for
respiratory protection against fumes of
various metals having an air contamination
level not less than 0.05 milligram
per cubic meter; minimum requirements.
84.1142 Isoamyl acetate tightness test; respirators
designed for respiratory protection
against dusts, fumes, and mists having
an air contamination level less than
0.05 milligram per cubic meter, or
against radionuclides; minimum requirements.
84.1143 Dust, fume, and mist air-purifying
filter tests; performance requirements;
general.
84.1144 Silica dust test for dust, fume, and
mist respirators; single-use or reusable
filters; minimum requirements.
84.1145 Silica dust test; non-powered single-
use dust respirators; minimum requirements.
84.1146 Lead fume test for dust, fume, and
mist respirators; minimum requirements.
84.1147 Silica mist test for dust, fume, and
mist respirators; minimum requirements.
84.1148 Tests for respirators designed for
respiratory protection against more than
one type of dispersoid; minimum requirements.
84.1149 Airflow resistance tests; all dust,
fume, and mist respirators; minimum requirements.
84.1150 Exhalation valve leakage test; minimum
requirements.
84.1151 DOP filter test; respirators designed
as respiratory protection against dusts,
fumes, and mists having an air contamination
level less than 0.05 milligram per
cubic meter and against radionuclides;
minimum requirements.
84.1152
Silica dust loading test; respirators
designed as protection against dusts,
fumes, and mists having an air contamination
level less than 0.05 milligram per
545
84.1
cubic meter and against radionuclides;
minimum requirements.
84.1153 Dust, fume, mist, and smoke tests;
canister bench tests; gas mask canisters
containing filters; minimum requirements.
84.1154 Canister and cartridge requirements.
84.1155 Filters used with canisters and cartridges;
location; replacement.
84.1156 Pesticide respirators; performance
requirements; general.
84.1157 Chemical cartridge respirators with
particulate filters; performance requirements;
general.
84.1158 Dust, fume, and mist tests; respirators
with filters; minimum requirements;
general.
TABLES TO SUBPART KK OF PART 84
AUTHORITY: 29 U.S.C. 577a, 651 et seq., and
657(g); 30 U.S.C. 3, 5, 7, 811, 842(h), 844.
SOURCE: 60 FR 30355, June 8, 1995, unless
otherwise noted.
EDITORIAL NOTE: Nomenclature changes to
part 84 appear at 69 FR 18803, Apr. 9, 2004.
Subpart AGeneral Provisions
84.1 Purpose.
The purpose of the regulations contained
in this part 84 is:
(a) To establish procedures and prescribe
requirements which must be met
in filing applications for approval by
the National Institute for Occupational
Safety and Health of respirators or
changes or modifications of approved
respirators;
(b) To establish a schedule of fees to
be charged each applicant for the inspections,
examinations, and testing
conducted by the Institute under the
provisions of this part;
(c) To provide for the issuance of certificates
of approval or modifications
of certificates of approval for respirators
which have met the applicable
construction, performance, and respiratory
protection requirements set
forth in this part; and
(d) To specify minimum requirements
and to prescribe methods to be
employed by the Institute and by the
applicant in conducting inspections,
examinations, and tests to determine
the effectiveness of respirators used
during entry into or escape from hazardous
atmospheres.
84.2 Definitions.
As used in this part
42 CFR Ch. I (10110 Edition)
(a) Applicant means an individual,
partnership, company, corporation, association,
or other organization that
designs, manufactures, assembles, or
controls the assembly of a respirator
and who seeks to obtain a certificate of
approval for such respirator.
(b) Approval means a certificate or
formal document issued by the Institute
stating that an individual respirator
or combination of respirators
has met the minimum requirements of
this part, and that the applicant is authorized
to use and attach an approval
label to any respirator, respirator container,
or instruction card for any respirator
manufactured or assembled in
conformance with the plans and specifications
upon which the approval was
based, as evidence of such approval.
(c) Approved means conforming to the
minimum requirements of this part.
(d) Auxiliary equipment means a self-
contained breathing apparatus, the use
of which is limited in underground
mine rescue and recovery operations to
situations where the wearer has ready
access to fresh air and at least one
crew equipped with approved self-contained
breathing apparatus of 2 hours
or longer rating, is in reserve at a
fresh-air base.
(e) Certification and Quality Assurance
Branch means the Certification and
Quality Assurance Branch, Division of
Safety Research, Appalachian Laboratory
for Occupational Safety and
Health, National Institute for Occupational
Safety and Health, 1095
Willowdale Road, Morgantown, West
Virginia 265052888.
(f) Compressed-breathing gas means oxygen
or air stored in a compressed
state and supplied to the wearer in gaseous
form.
(g) dBA means sound pressure levels
in decibels, as measured with the A-
weighted network of a standard sound
level meter using slow response.
(h) Dust means a solid mechanically
produced particle with a size ranging
from submicroscopic to macroscopic.
(i) Respirators for entry into and escape
from means respiratory devices providing
protection during entry into and
escape from hazardous atmospheres.
546
Public Health Service, HHS
(j) Respirators for escape only means
respiratory devices providing protection
only during escape from hazardous
atmospheres.
(k) A facepiece or mouthpiece is a respirator
component designed to provide
a gas-tight or dust-tight fit with the
face and may include headbands,
valves, and connections for canisters,
cartridges, filters, or respirable gas
source.
(l) Final inspection means that activity
carried out on a product after all
manufacturing and assembly operations
are completed to insure completeness
and adherence to performance
or other specifications, including
satisfactory appearance.
(m) Fume means a solid condensation
particle, generally less than 1 micrometer
in diameter.
(n) Gas means an aeriform fluid
which is in a gaseous state at ordinary
temperature and pressure.
(o) Hazardous atmosphere means:
(1) Any atmosphere containing a
toxic or disease producing gas, vapor,
dust, fume, mist, or pesticide, either
immediately or not immediately dangerous
to life or health; or
(2) Any oxygen-deficient atmosphere.
(p) A hood or helmet is a respirator
component
which covers the wearers
head
and neck, or head, neck, and
shoulders,
and is supplied with incoming
respirable
air for the wearer to
breathe.
It may include a headharness
and
connection for a breathing tube.
(q)
Immediately dangerous to life or
health
means conditions that pose an
immediate
threat to life or health or
conditions
that pose an immediate
threat
of severe exposure to contaminants,
such
as radioactive materials,
which
are likely to have adverse cumulative
or
delayed effects on health.
(r)
Incoming inspection means the activity
of
receiving, examining, and accepting
only
those materials and parts
whose
quality conforms to specification
requirements.
(s)
In-process inspection means the
control
of products at the source of
production
and at each step of the
manufacturing
process, so that departures
from
specifications can be corrected
before
defective components or
materials
are assembled into the finished
product.
84.3
(t)
Institute means the National Institute
for
Occupational Safety and
Health,
Department of Health and
Human
Services.
(u)
Liquefied-breathing gas means oxygen
or
air stored in liquid form and
supplied
to the wearer in a gaseous
form.
(v)
Mist means a liquid condensation
particle
with a size ranging from submicroscopic
to
macroscopic.
(w)
MSHA means the Mine Safety and
Health
Administration, U.S. Department
of
Labor.
(x)
Not immediately dangerous to life or
health
means any hazardous atmosphere
which
may produce physical discomfort
immediately,
chronic poisoning
after
repeated exposure, or
acute
adverse physiological symptoms
after
prolonged exposure.
(y)
Oxygen-deficient atmosphere means
an
atmosphere which contains an oxygen
partial
pressure of less than 148
millimeters
of mercury (19.5 percent by
volume
at sea level).
(z)
Powered air-purifying respirator
means
a device equipped with a face-
piece,
hood, or helmet, breathing tube,
canister,
cartridge, filter, canister with
filter,
or cartridge with filter, and a
blower.
(aa)
Respirator means any device designed
to
provide the wearer with respiratory
protection
against inhalation
of
a hazardous atmosphere.
(bb)
Single-use respirator means a respirator
that
is entirely discarded after
excessive
resistance, sorbent exhaustion,
or
physical damage renders it unsuitable
for
further use.
(cc)
Vapor means the gaseous state of
a
substance that is solid or liquid at ordinary
temperature
and pressure.
84.3
Respirators for mine rescue or
other
emergency use in mines.
(a)(1)
NIOSH and the Mine Safety and
Health
Administration (MSHA), U.S.
Department
of Labor, shall jointly review
and
issue certifications for respirators
used
for mine emergencies and
mine
rescue, including any associated
service-life
plans, users
manuals and
other
supporting documentation.
(2)
Each certification for a respirator
designed
for mine rescue or other
emergency
use in mines shall include,
547
84.10
as
a condition of approval, any use limitations
related
to mine safety and
health.
(b)
NIOSH and MSHA shall jointly
determine
appropriate recall and retrofit
remedies
for field complaints or
identified
deficiencies involving any
respirators
used in the mining environment.
Subpart
BApplication for
Approval
84.10
Application procedures.
(a)
Inspection, examination, and testing
leading
to the approval of the types
of
respirators classified in subpart F of
this
part shall be undertaken by the Institute
only
pursuant to written applications
which
meet the minimum requirements
set
forth in this subpart B.
(b)
Applications shall be submitted to
the
Certification and Quality Assurance
Branch,
and shall be accompanied
by
a check, bank draft, or money order
in
the amount specified in subpart C of
this
part, payable to the order of the
National
Institute for Occupational
Safety
and Health.
(c)
Except as provided in 84.64, the
examination,
inspection, and testing of
all
respirators shall be conducted by
the
Certification and Quality Assurance
Branch.
(d)
Applicants, manufacturers, or
their
representatives may visit or communicate
with
the Certification and
Quality
Assurance Branch in order to
discuss
the requirements for approval
of
any respirator or the proposed designs
thereof.
No charge shall be made
for
such consultation and no written
report
shall be issued to applicants,
manufacturers,
or their representatives
by
the Institute as a result of such consultation.
(e)
Respirators having electrical or
electronic
components that are required
to
be permissible under chapter
I
of title 30 shall be tested in accordance
with
30 CFR part 18. Applications
for
approval of such respirators by
MSHA
shall be submitted in writing to:
MSHA,
Approval and Certification Center,
Box
251, Industrial Park Road,
Triadelphia,
West Virginia 26059.
42
CFR Ch. I (10110 Edition)
84.11
Contents of application.
(a)
Each application for approval
shall
contain a complete written description
of
the respirator for which
approval
is requested together with
drawings
and specifications (and lists
thereof)
showing full details of construction
of
the respirator and of the
materials
used.
(b)
Drawings shall be titled, numbered,
and
dated; any revision dates
shall
be shown on the drawings, and
the
purpose of each revision being
sought
shall be shown on the drawing
or
described on an attachment to the
drawing
to which it applies.
(c)
Each application for approval
shall
contain a proposed plan for quality
control
which meets the minimum
requirements
set forth in subpart E of
this
part.
(d)
Each application shall contain a
statement
that the respirator has been
pretested
by the applicant as prescribed
in
84.64, and shall include the
results
of such tests.
(e)
Each application for approval
shall
contain a statement that the respirator
and
component parts submitted
for
approval are either prototypes, or
made
on regular production tooling,
with
no operation included which will
not
be incorporated in regular production
processing.
(The
information collections contained in
this
section are approved under OMB control
number
09200109)
84.12
Delivery of respirators and
components
by applicant; requirements.
(a)
Each applicant shall, when an application
is
filed pursuant to 84.10, be
advised
by the Institute of the total
number
of respirators and component
parts
required for testing.
(b)
The applicant shall deliver, at his
own
expense, the number of completely
assembled
respirators and component
parts
required for testing, to the Certification
and
Quality Assurance
Branch.
(c)
Respirators and component parts
submitted
for approval must be made
from
materials specified in the application.
(d)
One completely assembled respirator
approved
under the provisions
548
Public
Health Service, HHS
of
this part may be retained by the Institute
as
a laboratory exhibit, the remaining
respirators
may be returned to
the
applicant at his own expense, upon
written
request within 30 days after notice
of
approval. If no such request is
made,
the respirators will be disposed
of
by the Institute in such manner as it
deems
appropriate.
(e)
Where a respirator fails to meet
the
requirements for approval set forth
in
this part, all respirators and components
delivered
in accordance with this
section
may be returned to the applicant
at
his own expense, upon written
request
within 30 days after notice of
disapproval.
If no such request is made,
the
respirators will be disposed of by
the
Institute in such manner as it
deems
appropriate.
Subpart
CFees
84.20
Examination, inspection, and
testing
of complete respirator as
semblies;
fees.
Except
as provided in 84.22, the following
fees
shall be charged by the Institute
for
the examination, inspection
and
testing of complete respirator assemblies:
Self-contained
breathing apparatus:
Entry
and escape, 1 hour or more ... $3,500
Entry
and escape, less than 1 hour 2,750
Escape
only .................................... 2,000
Gas
masks:
Single
hazard .................................. 1,100
Type
N ............................................ 4,100
Supplied-air
respirators .................... 750
Particulate
respirators ..................... 1,250
Chemical
cartridge respirators ......... 1,150
84.21
Examination, inspection, and
testing
of respirator components or
subassemblies;
fees.
Except
as provided in 84.22, the following
fees
shall be charged by the Institute
for
the examination, inspection
and
testing of the individual respirator
components
or subassemblies:
Facepieces
............................................ $450
Canisters
.............................................. 900
Cartridges
............................................. 600
Filters
.................................................. 650
Hoses
.................................................... 250
Blowers
................................................. 250
Harnesses
............................................. 100
84.22
84.22
Unlisted fees; additional fees;
payment
by applicant prior to approval.
(a)
Applications for the examination,
inspection
and testing of complete respirator
assemblies
which are not listed
in
84.20, or for the examination, inspection,
and
testing of respirator components
or
subassemblies which are not
listed
in 84.21, shall be accompanied
by
the following deposits:
Complete
respirator assembly ........... $1,500
Each
individual component or subassembly
.........................................
500
(b)
The Institute reserves the right to
conduct
any examination, inspection,
or
test it deems necessary to determine
the
quality and effectiveness of any
listed
or unlisted respirator assembly
or
respirator component or subassembly,
and
to assess the cost of
such
examinations, inspections, or
tests
against the applicant prior to the
issuance
of any approval for such assembly,
component,
or subassembly.
(c)
The fees charged for the examination,
inspection,
and testing of unlisted
respirator
assemblies, unlisted individual
respirator
components or subassemblies,
and
for the additional examination,
inspection,
and testing of
listed
respirator assemblies and components
or
subassemblies shall be at the
rate
of $100 per day for each man-day
required
to be expended by the Institute.
(d)
Upon completion of all examinations,
inspections,
and tests of unlisted
respirator
assemblies or components,
or
following the completion of any additional
examination,
inspections, or
tests
of listed assemblies, or components
or
subassemblies, including retesting
subsequent
to disapproval, the
Institute
shall advise the applicant in
writing
of the total cost assessed and
the
additional amount, if any, which
must
be paid to the Institute as a condition
of
approval.
(e)
In the event the amount assessed
by
the Institute for unlisted assemblies,
or
components or subassemblies
is
less than the amount of the deposit
submitted
in accordance with paragraph
(a)
of this section, the Institute
shall
refund the overpayment upon the
issuance
of any approval or notice of
disapproval.
549
84.30
Subpart
DApproval and
Disapproval
84.30
Certificates of approval; scope
of
approval.
(a)
The Institute shall issue certificates
of
approval pursuant to the provisions
of
this subpart only for individual,
completely
assembled respirators
which
have been examined, inspected,
and
tested, and which meet
the
minimum requirements set forth in
subparts
H through L of this part, as
applicable.
(b)
The Institute will not issue certificates
of
approval for any respirator
component
or for any respirator subassembly.
(c)
The Institute shall not issue an
informal
notification of approval. However,
if
the application for approval,
submitted
in accordance with 84.11,
states
that the submitted respirator
and
component parts are only prototypes,
the
Institute will examine, inspect,
and
test such respirator and
component
parts in accordance with
the
provisions of this part. If, upon
completion
of such examinations, inspections
and
tests, it is found that the
prototype
meets the minimum requirements
set
forth in this part, the Institute
may
inform the applicant, in writing,
of
the results of the examinations,
inspections,
and tests, and may require
him
to resubmit respirators and component
parts
made on regular production
tooling,
with no operations included
which
will not be incorporated
in
regular production processing, for
further
examination, inspection, and
testing,
prior to issuance of the certificate
of
approval.
(d)
Applicants required to resubmit
respirators
and component parts made
on
regular production tooling, with no
operation
included which will not be
incorporated
in regular production
processing,
shall be charged fees in accordance
with
subpart C of this part.
84.31
Certificates of approval; contents.
(a)
The certificate of approval shall
contain
a classification and a description
of
the respirator or combination of
respirators
for which it is issued, as
provided
in this part.
42
CFR Ch. I (10110 Edition)
(b)
The certificate of approval shall
specifically
set forth any restrictions
or
limitations on the respirators
use
in
hazardous atmospheres.
(c)
Each certificate of approval shall
be
accompanied by the drawings and
specifications
(and lists thereof) submitted
by
the applicant in accordance
with
84.11. These drawings and specifications
shall
be referenced in the certificate
of
approval, and shall be maintained
by
the applicant. The drawings
and
specifications listed in each certificate
of
approval shall set forth in detail
the
design and construction requirements
which
shall be met by the
applicant
during commercial production
of
the respirator.
(d)
Each certificate of approval shall
be
accompanied by a reproduction of
the
approval label design to be employed
by
the applicant with each approved
respirator,
as provided in 84.33.
(e)
No test data or specific laboratory
findings
will accompany any certificate
of
approval, however, the Institute
will
release pertinent test data and
specific
findings upon written request
by
the applicant, or as required by
statute
or regulation.
(f)
Each certificate of approval shall
also
contain the approved quality control
plan
as specified in 84.42.
84.32
Notice of disapproval.
(a)
If, upon the completion of the examinations,
inspections,
and tests required
to
be conducted in accordance
with
the provisions of this part, it is
found
that the respirator does not meet
the
minimum requirements set forth in
this
part, the Institute shall issue a
written
notice of disapproval to the applicant.
(b)
Each notice of disapproval shall
be
accompanied by all pertinent data
or
findings with respect to the defects
of
the respirator for which approval
was
sought with a view to the possible
correction
of any such defects.
(c)
The Institute shall not disclose,
except
to the applicant or as required
by
statute or regulation, any data,
findings,
or other information with respect
to
any respirator for which a notice
of
disapproval is issued.
550
Public
Health Service, HHS
84.33
Approval labels and markings;
approval
of contents; use.
(a)
Full-scale reproductions of approval
labels
and markings, and a
sketch
or description of the method of
application
and position on the harness,
container,
canister, cartridge, filter,
or
other component, together with
instructions
for the use and maintenance
of
the respirator shall be submitted
to
the Institute for approval.
(b)
Approval labels shall bear the emblem
of
the National Institute for Occupational
Safety
and Health and the
seal
of the Department of Health and
Human
Services, the applicants
name
and
address, an approval number assigned
by
the Institute and, where ap
84.35
propriate,
restrictions or limitations
placed
upon the use of the respirator
by
the Institute. The approval number
assigned
by the Institute shall be designated
by
the prefix TC and a serial
number.
(c)
The Institute shall, where necessary,
notify
the applicant when additional
labels,
markings, or instructions
will
be required.
(d)
Approval labels and markings
shall
only be used by the applicant to
whom
they were issued.
(e)
Legible reproductions or abbreviated
forms
of the label approved by
the
Institute for use on each respirator
shall
be attached to or printed at the
following
locations:
Respirator
type Label type Location
Self-contained
breathing apparatus.
Gas
mask .................................
Supplied
air respirator ..............
Particulate
respirator ................
Chemical-cartridge
respirator ...
Entire
.......................................
Entire
.......................................
......do
......................................
......do
......................................
Abbreviated
.............................
Entire
.......................................
Abbreviated
.............................
Harness
assembly and canister (where applicable).
Mask
container and canister.
Respirator
container or instruction card.
Respirator
container and filter container.
Filters.
Respirator
container, cartridge container, and filter containers
(where
applicable).
Cartridges
and filters and filter containers.
(f)
The use of any Institute approval
label
obligates the applicant to whom
it
is issued to maintain or cause to be
maintained
the approved quality control
sampling
schedule and the acceptable
quality
level for each characteristic
tested,
and to assure that it
is
manufactured according to the drawings
and
specifications upon which the
certificate
of approval is based.
(g)
Each respirator, respirator component,
and
respirator container shall,
as
required by the Institute to assure
quality
control and proper use of the
respirator,
be labeled distinctly to
show
the name of the applicant, and
the
name and letters or numbers by
which
the respirator or respirator component
is
designated for trade purposes,
and
the lot number, serial number,
or
approximate date of manufacture.
84.34
Revocation of certificates of approval.
The
Institute reserves the right to
revoke,
for cause, any certificate of approval
issued
pursuant to the provisions
of
this part. Such causes include,
but
are not limited to, misuse of approval
labels
and markings, misleading
advertising,
and failure to maintain or
cause
to be maintained the quality
control
requirements of the certificate
of
approval.
84.35
Changes or modifications of approved
respirators;
issuance of
modification
of certificate of approval.
(a)
Each applicant may, if he desires
to
change any feature of an approved
respirator,
request a modification of
the
original certificate of approval
issued
by the Institute for such respirator
by
filing an application for
such
modification in accordance with
the
provisions of this section.
(b)
Applications shall be submitted as
for
an original certificate of approval,
with
a request for a modification of the
existing
certificate to cover any proposed
change.
(c)
The application shall be accompanied
by
appropriate drawings and
specifications,
and by a proposed quality
control
plan which meets the requirements
of
subpart E of this part.
551
84.36
(d)
The application for modification,
together
with the accompanying material,
shall
be examined by the Institute
to
determine whether testing will be
required.
(e)
The Institute shall inform the applicant
of
the fee required for any additional
testing
and the applicant will be
charged
for the actual cost of any examination,
inspection,
or test required,
and
such fees shall be submitted in accordance
with
the provisions of subpart
C
of this part.
(f)
If the proposed change or modification
meets
the requirements of this
part,
a formal certificate of modification
will
be issued, accompanied, where
necessary,
by a list of new and revised
drawings
and specifications covering
the
change(s) and reproductions of revised
approval
labels.
(The
information collections contained in
this
section are approved under OMB control
number
09200109)
84.36
Delivery of changed or modified
approved
respirator.
An
approved respirator for which a
formal
certificate of modification has
been
issued shall be delivered, with
proper
markings and containers, by the
applicant
to the Certification and
Quality
Assurance Branch, as soon as
it
is commercially produced.
Subpart
EQuality Control
84.40
Quality control plans; filing requirements.
As
a part of each application for approval
or
modification of approval submitted
pursuant
to this part, each applicant
shall
file with the Institute a
proposed
quality control plan which
shall
be designed to assure the quality
of
respiratory protection provided by
the
respirator for which approval is
sought.
84.41
Quality control plans; contents.
(a)
Each quality control plan shall
contain
provisions for the management
of
quality, including:
(1)
Requirements for the production
of
quality data and the use of quality
control
records;
(2)
Control of engineering drawings,
documentations,
and changes;
42
CFR Ch. I (10110 Edition)
(3)
Control and calibration of measuring
and
test equipment;
(4)
Control of purchased material to
include
incoming inspection;
(5)
Lot identification, control of
processes,
manufacturing, fabrication,
and
assembly work conducted in the
applicants
plant;
(6)
Audit of final inspection of the
completed
product; and
(7)
The organizational structure necessary
to
carry out these provisions.
(b)
Each provision for incoming and
final
inspection in the quality control
plan
shall include a procedure for the
selection
of a sample of respirators and
the
components thereof for testing, in
accordance
with procedures set forth in
Military
Standard MIL-STD-414, 11
June
1957, including Change Notice No.
1,
Sampling
Procedures and Tables for
Inspection
by Variables for Percent Defective,
or
an approved equivalent
sampling
procedure, or an approved
combination
of sampling procedures.
The
procedure of Military Standard
MIL-STD-105D,
29 April 1963, Sampling
Procedures
and Tables for Inspection
by
Attributes,
is an example of
an
equivalent sampling procedure.
MIL-STD-414
is incorporated by reference
and
has been approved by the
Director
of the Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR
part
51. Copies may be obtained from
DODSSP,
Standardization Document
Order
Desk, 700 Robbins Avenue, Bldg.
4D,
Philadelphia, PA 191115094. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
codeloflfederallregulations/
ibrllocations.html.
Copies of MIL-STD-
105D
may be inspected or obtained from
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888. Incoming
bulk
raw material inspection
or
verification of specification, and in-
process
inspection shall be sufficient to
ensure
control of product quality
through
the manufacturing cycle.
552
Public
Health Service, HHS
(c)
The sampling procedure shall include
a
list of the characteristics to be
tested
by the applicant or his agent.
(d)
The characteristics listed in accordance
with
paragraph (c) of this section
shall
be classified according to the
potential
effect of such defect and
grouped
into the following classes:
(1)
Critical. A defect that judgment
and
experience indicate is likely to result
in
a condition immediately hazardous
to
life or health for individuals
using
or depending upon the respirator;
(2)
Major A. A defect, other than critical,
that
is likely to result in failure
to
the degree that the respirator does
not
provide any respiratory protection,
or
a defect that reduces protection and
is
not detectable by the user;
(3)
Major B. A defect, other than
Major
A or critical, that is likely to result
in
reduced respiratory protection,
and
is detectable by the user; and
(4)
Minor. A defect that is not likely
to
materially reduce the usability of
the
respirator for its intended purpose,
or
a defect that is a departure from established
standards
and has little bearing
on
the effective use or operation of
the
respirator.
(e)
The quality control inspection
test
method to be used by the applicant
or
his agent for each characteristic required
to
be tested shall be described in
detail.
(f)
Each item manufactured shall be
100
percent inspected for defects in all
critical
characteristics and all defective
items
shall be rejected.
(g)
The Acceptable Quality Level
(AQL)
for each major or minor defect
so
classified by the applicant shall be:
(1)
Major A. 1.0 percent;
(2)
Major B. 2.5 percent; and
(3)
Minor. 4.0 percent.
(h)
Except as provided in paragraph
(i)
of this section, inspection level IV
as
described in MIL-STD-414, 11 June
1957,
including Change Notice No.1,
Sampling
Procedures and Tables for
Inspection
by Variables for Percent Defective,
or
an equivalent procedure,
shall
be used for major and minor characteristics
and
100 percent inspection
for
critical characteristics. Inspection
level
II as described in MIL-STD-105D,
29
April 1963, Sampling
Procedures
and
Tables for Inspection by At
84.43
tributes,
is an example of an equivalent
procedure.
(i)
Subject to the approval of the Institute,
where
the quality control plan
provisions
for raw material, processes,
manufacturing,
and fabrication, inspections
are
adequate to ensure control
of
finished article quality, destructive
testing
of finished articles may be
conducted
at a lower level of inspection
than
that specified in paragraph
(h)
of this section.
(The
information collections contained in
this
section are approved under OMB control
number
09200109)
84.42
Proposed quality control plans;
approval
by the Institute.
(a)
Each proposed quality control
plan
submitted in accordance with this
subpart
shall be reviewed by the Institute
to
determine its effectiveness in
ensuring
the quality of respiratory protection
provided
by the respirator for
which
an approval is sought.
(b)
If the Institute determines that
the
proposed quality control plan submitted
by
the applicant will not ensure
adequate
quality control, the Institute
shall
require the applicant to modify
the
procedures and testing requirements
of
the plan prior to approval of
the
plan and issuance of any certificate
of
approval.
(c)
Approved quality control plans
shall
constitute a part of and be incorporated
into
any certificate of approval
issued
by the Institute, and compliance
with
such plans by the applicant shall
be
a condition of approval.
84.43
Quality control records; reviewby the Institute; revocation of
approval.
(a)
The applicant shall keep quality
control
inspection records sufficient to
carry
out the procedures required in
MIL-STD-414,
11 June 1957, including
Change
Notice No. 1, Sampling
Procedures
and
Tables for Inspection by
Variables
for Percent Defective,
or an
approved
equivalent sampling procedure.
MIL-STD-105D,
29 April 1963,
Sampling
Procedures and Tables for
Inspection
by Attributes,
is an example
of
an approved equivalent sampling
procedure.
MIL-STD-414 is incorporated
by
reference and has been approved
by
the Director of the Federal
553
84.50
Register
in accordance with 5 U.S.C.
552(a)
and 1 CFR part 51. Copies may be
obtained
from DODSSP, Standardization
Document
Order Desk, 700 Robbins
Avenue,
Bldg. 4D, Philadelphia, Pa.
191115094.
Copies may be inspected at
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888, or
at
the National Archives and Records
Administration
(NARA). For information
on
the availability of this material
at
NARA, call 2027416030, or go
to:
http://www.archives.gov/
federallregister/
codeloflfederallregulations/
ibrllocations.html.
Copies of MIL-STD-
105D
may be inspected or obtained from
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888.
(b)
The Institute reserves the right to
have
its representatives inspect the applicants
quality
control test methods,
equipment,
and records, and to interview
any
employee or agent of the applicant
in
regard to quality control
test
methods, equipment, and records.
(c)
The Institute reserves the right to
revoke,
for cause, any certificate of approval
where
it is found that the applicants
quality
control test methods,
equipment,
or records do not ensure effective
quality
control over the respirator
for
which the approval was
issued.
(The
information collections contained in
this
section are approved under OMB control
number
09200109)
Subpart
FClassification of Approved
Respirators;
Scope ofApproval; Atmospheric Hazards;
Service
Time
84.50
Types of respirators to be approved;
scope
of approval.
Approvals
shall be issued for the
types
of respirators which have been
classified
pursuant to this subpart F,
have
been inspected, examined and
tested
by the Institute, in accordance
with
the provisions of subparts G
through
L of this part, and have been
found
to provide respiratory protection
for
fixed periods of time against the
hazards
specified in such approval.
42
CFR Ch. I (10110 Edition)
84.51
Entry and escape, or escapeonly; classification.
Respirators
described in subparts H
through
L of this part shall be classified
for
use as follows:
(a)
Entry and escape. Respirators designed
and
approved for use during
entry
into a hazardous atmosphere,
and
for escape from a hazardous atmosphere;
or
(b)
Escape only. Respirators designed
and
approved for use only during escape
from
a hazardous atmosphere.
84.52
Respiratory hazards; classification.
Respirators
described in subparts H
through
L of this part shall be classified
as
approved for use against any or
all
of the following respiratory hazards:
(a)
Oxygen deficiency;
(b)
Gases and vapors; and
(c)
Particles, including dusts, fumes
and
mists.
84.53
Service time; classification.
(a)
Respirators described in subparts
H
through L of this part shall be classified,
where
applicable, as approved for
use
during the following prescribed
service
times:
(1)
Four hours;
(2)
Three hours;
(3)
Two hours;
(4)
One hour;
(5)
Forty-five minutes;
(6)
Thirty minutes;
(7)
Fifteen minutes;
(8)
Ten minutes;
(9)
Five minutes; or
(10)
Three minutes.
(b)
Other service times may be prescribed
by
the Institute.
Subpart
GGeneral Constructionand Performance Requirements
84.60
Construction and performance
requirements;
general.
(a)
The Institute shall issue approvals
for
the types of respirators described
in
subparts H through L of this
part
which have met the minimum requirements
set
forth for such respirators
in
this part.
(b)
In addition to the types of respirators
specified
in subparts H
through
L of this part, the Institute
554
Public
Health Service, HHS
shall
issue approvals for other respiratory
protective
devices not specifically
described
in this part subject to
such
additional requirements as may
be
imposed in accordance with
84.63(c).
84.61
General construction requirements.
(a)
Respirators will not be accepted
by
the Institute for examination, inspection
and
testing unless they are designed
on
sound engineering and scientific
principles,
constructed of suitable
materials
and evidence good workmanship.
(b)
Respirator components which
come
into contact with the wearers
skin
shall be made of nonirritating materials.
(c)
Components replaced during or
after
use shall be constructed of materials
which
will not be damaged by normal
handling.
(d)
Mouthpieces, hoods, helmets, and
facepieces,
except those employed in
single-use
respirators, shall be constructed
of
materials which will withstand
repeated
disinfection as recommended
by
the applicant in his instructions
for
use of the device.
84.62
Component parts; minimum requirements.
(a)
The component parts of each respirator
shall
be:
(1)
Designed, constructed, and fitted
to
insure against creation of any hazard
to
the wearer;
(2)
Assembled to permit easy access
for
inspection and repair of functional
parts;
and
(3)
Assembled to permit easy access
to
parts which require periodic cleaning
and
disinfecting.
(b)
Replacement parts shall be designed
and
constructed to permit easy
installation
and to maintain the effectiveness
of
the respirator.
84.63
Test requirements; general.
(a)
Each respirator and respirator
component
shall when tested by the applicant
and
by the Institute, and meet
the
applicable requirements set forth
in
subparts H through L of this part.
(b)
Where a combination respirator is
assembled
from two or more types of
respirators,
as described in this part,
84.64
each
of the individual respirator types
which
have been combined shall, as applicable,
meet
the minimum requirements
for
such respirators set forth in
subparts
H through L of this part, and
such
combination respirators, except
as
specified in 84.70(b)(2), will be classified
by
the type of respirator in the
combination
which provides the least
protection
to the user.
(c)
In addition to the minimum requirements
set
forth in subparts H
through
L of this part, the Institute reserves
the
right to require, as a further
condition
of approval, any additional
requirements
deemed necessary to establish
the
quality, effectiveness, and
safety
of any respirator used as protection
against
hazardous atmospheres.
(d)
Where it is determined after receipt
of
an application that additional
requirements
will be required for approval,
the
Institute will notify the applicant
in
writing of these additional
requirements,
and necessary examinations,
inspections,
or tests, stating
generally
the reasons for such requirements,
examinations,
inspections, or
tests.
84.64
Pretesting by applicant; approval
of
test methods.
(a)
Prior to making or filing any application
for
approval or modification
of
approval, the applicant shall conduct,
or
cause to be conducted, examinations,
inspections,
and tests of respirator
performance
which are equal to
or
exceed the severity of those prescribed
in
this part.
(b)
With the application, the applicant
shall
provide a statement to the
Institute
showing the types and results
of
the examinations, inspections, and
tests
required under paragraph (a) of
this
section and state that the respirator
meets
the minimum requirements
of
subparts H through L of this
part,
as applicable. Complete examination,
inspection,
and test data shall be
retained
on file by the applicant and be
submitted,
upon request, to the Institute.
(c)
The Institute may, upon written
request
by the applicant, provide drawings
and
descriptions of its test equipment
and
otherwise assist the applicant
in
establishing a test laboratory
555
84.65
or
securing the services of a testing
agency.
(d)
No approval will be issued until
the
Institute has validated the applicants
test
results.
84.65
Conduct of examinations, inspections,
and
tests by the Institute;
assistance
by applicant; observers;
recorded
data; public demonstrations.
(a)
All examinations, inspections,
and
tests conducted pursuant to subparts
H
through L of this part will be
under
the sole direction and control of
the
Institute.
(b)
The Institute may, as a condition
of
approval, require the assistance of
the
applicant or agents of the applicant
during
the assembly, disassembly, or
preparation
of any respirator or respirator
component
prior to testing or
in
the operation of such equipment
during
testing.
(c)
Only Institute personnel, persons
assisting
the Institute pursuant to
paragraph
(b) of this section, and such
other
persons as are requested by the
Institute
or the applicant to be observers,
shall
be present during any examination,
inspection,
or test conducted
prior
to the issuance of an approval by
the
Institute for the equipment under
consideration.
(d)
The Institute shall hold as confidential
any
analyses, drawings, specifications,
or
materials submitted by
the
applicant and shall not disclose
any
principles or patentable features of
such
equipment, except as required by
statute
or regulation.
(e)
As a condition of each approval
issued
for any respirator, the Institute
reserves
the right, following the
issuance
of such approval, to conduct
such
public tests and demonstrations
of
the approved respiratory equipment
as
is deemed appropriate.
84.66
Withdrawal of applications; refund
of
fees.
(a)
Any applicant may, upon a written
request
submitted to the Institute,
withdraw
any application for approval
of
any respirator.
(b)
Upon receipt of a written request
for
the withdrawal of an application,
the
Institute shall determine the total
man-days
expended and the amount
due
for services already performed dur42
CFR
Ch. I (10110 Edition)
ing
the course of any examinations, inspections,
or
tests conducted pursuant
to
such application. The total amount
due
shall be determined in accordance
with
the provisions of 84.22 and assessed
against
the fees submitted by
the
applicant. If the total amount assessed
is
less than the fees submitted,
the
Institute shall refund the balance
together
with a statement of the
charges
made for services rendered.
Subpart
HSelf-Contained
Breathing
Apparatus
84.70
Self-contained breathing apparatus;
description.
(a)
Self-contained breathing apparatus,
including
all completely assembled,
portable,
self-contained devices
designed
for use as respiratory protection
during
entry into and escape from
or
escape only from hazardous
atmospheres,
are described as follows:
(1)
Closed-circuit apparatus. An apparatus
of
the type in which the exhalation
is
rebreathed by the wearer after
the
carbon dioxide has been effectively
removed
and a suitable oxygen concentration
restored
from sources composed
of:
(i)
Compressed oxygen; or
(ii)
Chemical oxygen; or
(iii)
Liquid-oxygen.
(2)
Open-circuit apparatus. An apparatus
of
the following types from which
exhalation
is vented to the atmosphere
and
not rebreathed:
(i)
Demand-type apparatus. An apparatus
in
which the pressure inside the
facepiece
in relation to the immediate
environment
is positive during exhalation
and
negative during inhalation; or
(ii)
Pressure-demand-type apparatus.
An
apparatus in which the pressure inside
the
facepiece in relation to the immediate
environment
is positive during
both
inhalation and exhalation.
(b)
The following respirators may be
classified
as designed and approved for
use
during emergency entry into a hazardous
atmosphere:
(1)
A combination respirator which
includes
a self-contained breathing apparatus;
and
(2)
A Type C
or Type CE
supplied
air
respirator, where
(i)
The self-contained breathing apparatus
is
classified for 3-, 5-, or 10-
556
Public
Health Service, HHS
minute
service time and the air line
supply
is used during entry; or
(ii)
The self-contained breathing apparatus
is
classified for 15 minutes or
longer
service time and not more than
20
percent of the rated capacity of the
air
supply is used during entry.
(c)
Self-contained breathing apparatus
classified
for less than 1 hour
service
time will not be approved for
use
during underground mine rescue
and
recovery operations except as auxiliary
equipment.
(d)
Self-contained breathing apparatus
classified
for less than 30 minutes
service
time will not be approved
for
use as auxiliary equipment during
underground
mine rescue and recovery
operations.
84.71
Self-contained breathing apparatus;
required
components.
(a)
Each self-contained breathing apparatus
described
in 84.70 shall, where
its
design requires, contain the following
component
parts:
(1)
Facepiece or mouthpiece, and
noseclip;
(2)
Respirable breathing gas container;
(3)
Supply of respirable breathing
gas;
(4)
Gas pressure or liquid level gages;
(5)
Timer;
(6)
Remaining service life indicator
or
warning device;
(7)
Hand-operated valves;
(8)
Breathing bag;
(9)
Safety relief valve or safety relief
system;
and
(10)
Harness.
(b)
The components of each self-contained
breathing
apparatus shall meet
the
minimum construction requirements
set
forth in subpart G of this
part.
84.72
Breathing tubes; minimum requirements.
Flexible
breathing tubes used in conjunction
with
breathing apparatus
shall
be designed and constructed to
prevent:
(a)
Restriction of free head movement;
(b)
Disturbance of the fit of
facepieces
and mouthpieces;
(c)
Interference with the wearers
activities;
and
84.75
(d)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.73
Harnesses; installation and construction;
minimum
requirements.
(a)
Each apparatus shall, where necessary,
be
equipped with a suitable harness
designed
and constructed to hold
the
components of the apparatus in position
against
the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of apparatus parts
and,
where applicable, provide for holding
a
full facepiece in the ready position
when
not in use.
84.74
Apparatus containers; minimum
requirements.
(a)
Apparatus may be equipped with a
substantial,
durable container bearing
markings
which show the applicants
name,
the type and commercial designation
of
the respirator it contains,
and
all appropriate approval labels.
(b)
Containers supplied by the applicant
for
carrying or storing self-contained
breathing
apparatus will be inspected,
examined,
and tested as components
of
the respirator for which approval
is
sought.
(c)
Containers for self-contained
breathing
apparatus shall be designed
and
constructed to permit easy removal
of
the apparatus.
84.75
Half-mask facepieces, full
facepieces,
mouthpieces; fit; minimum
requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes, either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Full facepieces shall provide for
the
optional use of corrective spectacles
or
lenses which shall not reduce
the
respiratory protective qualities of
the
apparatus.
(c)
Apparatus with mouthpieces shall
be
equipped with noseclips which are
securely
attached to the mouthpiece or
apparatus
and provide an airtight seal.
557
84.76
(d)
Facepieces shall be designed to
prevent
eyepiece, spectacle, and lens
fogging.
84.76
Facepieces; eyepieces; minimum
requirements.
(a)
Facepieces shall be designed and
constructed
to provide adequate vision
which
is not distorted by the eyepiece.
(b)
All eyepieces shall be designed
and
constructed to be impact and penetration
resistant.
Federal Specification,
Mask,
Air Line: and Respirator,
Air
Filtering, Industrial, GGG-M-125d,
October
11, 1965 with interim amendment-
1,
July 30, 1969, is an example of
an
appropriate standard for determining
impact
and penetration resistance.
Copies
of GGG-M-125d may be obtained
from
the NIOSH, Certification
and
Quality Assurance Branch, 1095
Willowdale
Road, Morgantown, WV
265052888.
84.77
Inhalation and exhalation
valves;
minimum requirements.
(a)
Inhalation and exhalation valves
shall
be provided where necessary and
protected
against damage and distortion.
(b)
Exhalation valves shall be
(1)
Protected against external influence;
and
(2)
Designed and constructed to prevent
inward
leakage of contaminated
air.
84.78
Head harnesses; minimum requirements.
(a)
Facepieces shall be equipped with
adjustable
and replaceable head harnesses
designed
and constructed to provide
adequate
tension during suspension
and
an even distribution of pressure
over
the entire area in contact
with
the face.
(b)
Mouthpieces shall be equipped,
where
applicable, with adjustable and
replaceable
harnesses designed and
constructed
to hold the mouthpiece in
place.
84.79
Breathing gas; minimum requirements.
(a)
Breathing gas used to supply apparatus
shall
be respirable and contain
no
less than 19.5 (dry atmosphere) volume
percent
of oxygen.
42
CFR Ch. I (10110 Edition)
(b)
Oxygen, including liquid oxygen,
shall
contain not less than 99.0 percent,
by
volume, of pure O2, not more than
0.03%,
by volume, carbon dioxide, and
not
more than 0.001%, by volume, carbon
monoxide.
Methods for making
these
determinations can be found in
the
U.S. Pharmacopeia National Formulary.
Containers
used for oxygen
must
not be treated with any toxic,
sleep-inducing,
narcosis-producing, or
respiratory
tract irritating compounds.
(c)
Compressed, gaseous breathing air
shall
meet the applicable minimum
grade
requirements for Type I gaseous
air
set forth in the Compressed Gas Association
Commodity
Specification for
Air,
G7.1, 1966 (Grade D or higher quality).
G7.1
is incorporated by reference
and
has been approved by the Director
of
the Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR part 51.
Copies
may be obtained from American
National
Standards Institute, Inc., 1430
Broadway,
New York, NY 10018. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
codeloflfederallregulations/
ibrllocations.html.
(d)
Compressed, liquefied breathing
air
shall meet the applicable minimum
grade
requirements for Type II liquid
air
set forth in the Compressed Gas Association
Commodity
Specification for
Air,
G7.1, 1966 (Grade B or higher quality).
G7.1
is incorporated by reference
and
has been approved by the Director
of
the Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR part 51.
Copies
may be obtained from American
National
Standards Institute, Inc., 1430
Broadway,
New York, NY 10018. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
558
Public
Health Service, HHS
codeloflfederallregulations/
ibrllocations.html.
84.80
Interchangeability of oxygen
and
air prohibited.
Approvals
shall not be issued by the
Institute
for any apparatus, combination
of
respirator assemblies, or any
apparatus
or respirator component
which
is designed or constructed to
permit
the interchangeable use of oxygen
and
air.
84.81
Compressed breathing gas and
liquefied
breathing gas containers;
minimum
requirements.
(a)
Compressed breathing gas and liquefied
breathing
gas containers shall
meet
the minimum requirements of the
Department
of Transportation for
interstate
shipment of such containers
when
fully charged.
(b)
Such containers shall be permanently
and
legibly marked to identify
their
contents, e.g., compressed breathing
air,
compressed breathing oxygen,
liquefied
breathing air, or liquefied
breathing
oxygen.
(c)
Containers normally removed
from
apparatus for refilling shall be
equipped
with a dial indicating gage
which
shows the pressure in the container.
(d)
Compressed breathing gas contained
valves
or a separate charging
system
or adapter provided with each
apparatus
shall be equipped with outlet
threads
specified for the service by the
American
Standards Association, Compressed
Gas
Cylinder Valve Outlet and
Inlet
Connections, B57.11965. B57.11965
is
incorporated by reference and has
been
approved by the Director of the
Federal
Register in accordance with 5
U.S.C.
552(a) and 1 CFR part 51. Copies
may
be obtained from American National
Standards
Institute, Inc., 1430
Broadway,
New York, NY Copies may
be
inspected at the NIOSH, Certification
and
Quality Assurance Branch,
1095
Willowdale Road, Morgantown, WV
265052888,
or at the National Archives
and
Records Administration (NARA).
For
information on the availability of
this
material at NARA, call 202741
6030,
or go to: http://www.archives.gov/
federallregister/
codeloflfederallregulations/
ibrllocations.html.
84.82
84.82
Gas pressure gages; minimumrequirements.
(a)
Gas pressure gages employed on
compressed
breathing gas containers
shall
be calibrated in pounds per square
inch.
(b)
Liquid-level gages shall be calibrated
in
fractions of total container
capacity,
or in units of liquid volume.
(c)
Gas pressure gages other than
those
specified in paragraphs (a) and
(b)
of this section shall be calibrated
in:
(1)
Pounds per square inch; or
(2)
In fractions of total container capacity;
or
(3)
Both in pounds per square inch
and
fractions of total container capacity.
(d)(1)
Dial-indicating gages shall be
reliable
to within 5 percent of full
scale
when tested both up and down the
scale
at each of 5 equal intervals.
(2)
The full-scale graduation of dial-
indicating
gages shall not exceed 150
percent
of the maximum rated cylinder
pressures
specified for the container in
applicable
Department of Transportation
specifications
or permits.
(e)(1)
Stem-type gages shall be readable
by
sight and by touch and shall
have
a stem travel distance of not less
than
one-fourth inch between each
graduation.
(2)
A minimum of five graduations
shall
be engraved on the stem of each
gage
and these graduations shall include
readings
for empty, one-quarter,
one-half,
three-quarters, and full.
(3)
Stem gage readings shall not vary
from
true readings by more than one-
sixteenth
inch per inch of stem travel.
(f)
The loss of gas through a broken
gage
or severed gage connection shall
not
exceed 70 liters per minute when
the
cylinder pressure is 6,900 kN/m.2
(1,000
pounds per square inch gage) or
when
the liquid level is at one-half.
(g)
Where gages are connected to the
apparatus
through a gage line, the gage
and
line shall be capable of being isolated
from
the apparatus except where
the
failure of the gage or line would
not
impair the performance or service
life
of the apparatus.
(h)
Oxygen pressure gages shall have
the
words Oxygen
and Use
No Oil
marked
prominently on the gage.
559
84.83
(i)(1)
Apparatus using compressed
breathing
gas, except apparatus classified
for
escape only, shall be equipped
with
gages visible to the wearer which
indicate
the remaining gas content in
the
container.
(2)
Apparatus using liquefied breathing
gas,
except apparatus classified for
escape
only, shall be equipped with
gages
visible to the wearer which indicate
the
remaining liquid content in
the
container; however, where the liquid
content
cannot be rapidly vented,
and
the service time of the device begins
immediately
after filling, a timer
shall
be provided in place of a visible
gage.
84.83
Timers; elapsed time indica
tors;
remaining service life indica
tors;
minimum requirements.
(a)
Elapsed time indicators shall be
provided
for apparatus with a chemical
oxygen
source, except:
(1)
Apparatus used for escape only; or
(2)
Liquefied breathing gas apparatus
equipped
with gages visible to the
wearer
which indicate the remaining
liquid
content in the container.
(b)
The timer or other indicator shall
be
accurately calibrated in minutes of
remaining
service life.
(c)
Timers shall be readable by sight
and
by touch during use by the wearer.
(d)
Timers shall be equipped with
automatically
preset alarms which will
warn
the wearer for a period of 7 seconds
or
more after the preset time has
elapsed.
(e)
Remaining service-life indicators
or
warning devices shall be provided in
addition
to a pressure gage on compressed
gas
self-contained breathing
apparatus,
except apparatus used for
escape
only, and shall operate automatically
without
preadjustment by
the
wearer.
(f)
Each remaining service-life indicator
or
warning device shall give an
alarm
when the remaining service life
of
the apparatus is reduced within a
range
of 20 to 25 percent of its rated
service
time.
84.84
Hand-operated valves; minimum
requirements.
(a)
Hand-operated valves shall be designed
and
constructed to prevent removal
of
the stem from the valve body
42
CFR Ch. I (10110 Edition)
during
normal usage to insure against
a
sudden release of the full pressure of
the
container when the valve is opened.
(b)
Valves shall be designed or positioned
to
prevent accidental opening
and
closing, and damage from external
forces.
(c)
Valves operated during use of the
apparatus
shall be installed in locations
where
they can be readily adjusted
by
the wearer.
(d)
Main-line valves, designed and
constructed
to conserve gas in the
event
of a regulator or demand valve
failure,
shall be provided in addition to
gas
container valves, except when such
failure
will not affect performance.
(e)
Hand-operated bypass systems designed
and
constructed to permit the
wearer
to breathe and to conserve his
gas
supply in the event of a regulator
or
demand valve failure, shall be provided
where
necessary.
(f)
Valves installed on apparatus
shall
be clearly distinguishable from
one
another by sight and touch.
(g)
The bypass system valve control
shall
be colored red.
(h)
A main-line or bypass valve or
system
will not be required on apparatus
for
escape only.
(i)
Safety relief valves or systems,
designed
and constructed to release excess
pressure
in the breathing circuit,
shall
be provided on closed-circuit apparatus,
and
shall meet the following
requirements:
(1)
The relief valve or system shall
operate
automatically when the pressure
in
the breathing circuit on the inhalation
side
of the breathing bag
reaches
13 mm. (one-half inch) water-
column
height of pressure above the
minimum
pressure required to fill the
breathing
bag, within the breathing resistance
requirements
for the apparatus.
(2)
The relief valve or system shall be
designed
to prevent external
atmospheres
from entering the breathing
circuit.
(3)
The relief valve or system shall be
designed
to permit manual overriding
for
test purposes and in the event of a
failure
in the valve or system.
560
Public
Health Service, HHS
84.85
Breathing bags; minimum requirements.
(a)
Breathing bags shall have sufficient
volume
to prevent gas waste during
exhalation
and to provide an adequate
reserve
for inhalation.
(b)
Breathing bags shall be constructed
of
materials which are flexible
and
resistant to gasoline vapors.
(c)
Breathing bags shall be installed
in
a location which will protect them
from
damage or collapse by external
forces,
except on apparatus classified
for
escape only.
84.86
Component parts exposed to
oxygen
pressures; minimum re
quirements.
Each
applicant shall certify that the
materials
employed in the construction
of
component parts exposed to oxygen
pressures
above atmospheric pressure
are
safe and compatible for their
intended
use.
84.87
Compressed gas filters; minimum
requirements.
All
self-contained breathing apparatus
using
compressed gas shall have
a
filter downstream of the gas source
to
effectively remove particles from
the
gas stream.
84.88
Breathing bag test.
(a)
Breathing bags will be tested in
an
air atmosphere saturated with gasoline
vapor
at room temperature (2430
C./7585
F.) for a continuous period of
twice
the rated time of the apparatus
(except
for apparatus for escape only
where
the test period shall be the rated
time
of the apparatus).
(b)
The bag will be operated during
this
test by a breathing machine with
24
respirations per minute and a
minute-volume
of 40 liters.
(c)
A breathing machine cam with a
work
rate of 622 kp.-m./min. will be
used.
The dimensions of a suitable
breathing
machine cam are available
from
the Institute upon request.
(d)
The air within the bag(s) shall not
contain
more than 100 parts per million
of
gasoline vapor at the end of the test.
84.89
Weight requirement.
(a)
The completely assembled and
fully
charged apparatus shall not weigh
more
than 16 kg. (35 pounds); however,
84.91
where
the weight decreases by more
than
25 percent of its initial charge
weight
during its rated service life, the
maximum
allowable weight of a completely
assembled
and fully charged apparatus
shall
be 18 kg. (40 pounds).
(b)
Where an apparatus employs
equipment
which contributes materially
to
the wearers
comfort, e.g., a
cooling
system, the completely assembled
and
fully charged apparatus shall
not
weigh more than 18 kg. (40 pounds)
regardless
of the decrease in weight
during
use.
84.90
Breathing resistance test; inhalation.
(a)
Resistance to inhalation airflow
will
be measured in the facepiece or
mouthpiece
while the apparatus is operated
by
a breathing machine as described
in
84.88.
(b)
The inhalation resistance of open-
circuit
apparatus shall not exceed 32
mm.
(1.25 inch) water-column height
(at
a flow rate of 120 liters per minute).
(c)
The inhalation resistance of
closed-circuit
apparatus shall not exceed
the
difference between exhalation
resistance
( 84.91(e)) and 10 cm. (4
inches)
water-column height.
84.91
Breathing resistance test; exhalation.
(a)
Resistance to exhalation airflow
will
be measured in the facepiece or
mouthpiece
of open-circuit apparatus
with
air flowing at a continuous rate of
85
liters per minute.
(b)
The exhalation resistance of demand
apparatus
shall not exceed 25
mm.
(1 inch) water-column height.
(c)
The exhalation resistance of pressure-
demand
apparatus shall not exceed
the
static pressure in the face-
piece
by more than 51 mm. (2 inches)
water-column
height.
(d)
The static pressure (at zero flow)
in
the facepiece shall not exceed 38
mm.
(1.5 inches) water-column height.
(e)
Resistance to exhalation airflow
will
be measured in the facepiece or
mouthpiece
of closed-circuit apparatus
with
a breathing machine as described
in
84.88, and the exhalation resistance
shall
not exceed 51 mm. (2 inches)
water-column
height.
561
84.92
84.92
Exhalation valve leakage test.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. (1 inch) water-column height
while
in a normal operating position.
(b)
Leakage between the valve and
the
valve seat shall not exceed 30 milliliters
per
minute.
84.93
Gas flow test; open-circuit apparatus.
(a)
A static-flow test will be performed
on
all open-circuit apparatus.
(b)
The flow from the apparatus shall
be
greater than 200 liters per minute
when
the pressure in the facepiece of
demand-apparatus
is lowered by 51 mm.
(2
inches) water-column height when
full
container pressure is applied.
(c)
Where pressure demand apparatus
are
tested, the flow will be measured at
zero
gage pressure in the facepiece.
(d)
Where apparatus with compressed-
breathing-gas
containers are
tested,
the flow test shall also be made
with
3,450 kN/m.2 (500 p.s.i.g.) container
pressure
applied.
84.94
Gas flow test; closed-circuit apparatus.
(a)
Where oxygen is supplied by a
constant-flow
device only, the rate of
flow
shall be at least 3 liters per
minute
for the entire rated service
time
of the apparatus.
(b)
Where constant flow is used in
conjunction
with demand flow, the constant
flow
shall be greater than 1.5 liters
per
minute for the entire rated
service
time.
(c)
All demand-flow devices shall provide
at
least 30 liters of oxygen per
minute
when in the fully open position.
84.95
Service time test; open-circuit
apparatus.
(a)
Service time will be measured
with
a breathing machine as described
in
84.88.
(b)
The open-circuit apparatus will be
classified
according to the length of
time
it supplies air or oxygen to the
breathing
machine.
(c)
The service time obtained on this
test
will be used to classify the open-
circuit
apparatus in accordance with
84.53.
42
CFR Ch. I (10110 Edition)
84.96
Service time test; closed-circuit
apparatus.
(a)
The closed-circuit apparatus will
be
classified according to the length of
time
it supplies adequate breathing gas
to
the wearer during man test No. 4 described
in
Table 4 of this subpart.
(b)
The service time obtained on man
test
No. 4 will be used to classify the
closed-circuit
apparatus in accordance
with
84.53.
84.97
Test for carbon dioxide in inspired
gas;
open- and closed-circuit
apparatus;
maximum allowable limits.
(a)
Open-circuit apparatus. (1) The
concentration
of carbon dioxide in inspired
gas
in open-circuit apparatus
will
be measured at the mouth while
the
apparatus mounted on a dummy
head
is operated by a breathing machine.
An
acceptable method for measuring
the
concentration of carbon dioxide
is
described in Bureau of Mines Report
of
Investigations 6865, A Machine-
Test
Method for Measuring Carbon Dioxide
in
the Inspired Air of Self-Contained
Breathing
Apparatus, 1966. Copies
of
Report of Investigations 6865 may
be
inspected or obtained from the
NIOSH,
Certification and Quality Assurance
Branch,
1095 Willowdale Road,
Morgantown,
WV. 265052888.
(2)
The breathing rate will be 14.5 respirations
per
minute with a minute-
volume
of 10.5 liters.
(3)
A sedentary breathing machine
cam
will be used.
(4)
The apparatus will be tested at a
temperature
of 27 2 C. (80 5 F.).
(5)
A concentration of 5 percent carbon
dioxide
in air will be exhaled into
the
facepiece.
(b)
Closed-circuit apparatus. The concentration
of
carbon dioxide in inspired
gas
in closed-circuit apparatus will be
measured
at the mouth while the parts
of
the apparatus contributing to dead-
air
space are mounted on a dummy
head
and operated by the breathing
machine
as in paragraphs (a) (1)
through
(5) of this section.
(c)
During the testing required by
paragraphs
(a) and (b) of this section,
the
concentration of carbon dioxide in
inspired
gas at the mouth will be continuously
recorded,
and the maximum
562
Public
Health Service, HHS
average
concentration during the inhalation
portion
of the breathing cycle
shall
not exceed the following limits:
Maximum
allowable average
concentration
of
Where
the service time is
carbon
dioxide in inspired
air
percent by volume
Not
more than 30 minutes .............
2.5
1
hour ............................................
2.0
2
hours ...........................................
1.5
3
hours ...........................................
1.0
4
hours ...........................................
1.0
(d)
In addition to the test requirements
for
closed-circuit apparatus set
forth
in paragraph (b) of this section,
gas
samples will be taken during the
course
of the man tests described in
Tables
1, 2, 3, and 4 of this subpart.
These
gas samples will be taken from
the
closed-circuit apparatus at a point
downstream
of the carbon dioxide sorbent,
and
they shall not contain more
than
0.5 percent carbon dioxide at any
time,
except on apparatus for escape
only,
using a mouthpiece only, the
sample
shall not contain more than 1.5
percent
carbon dioxide at any time.
84.98
Tests during low temperature
operation.
(a)
The applicant shall specify the
minimum
temperature for safe operation
and
two persons will perform the
tests
described in paragraphs (c) and
(d)
of this section, wearing the apparatus
according
to applicants
directions.
At
the specified temperature, the
apparatus
shall meet all the requirements
described
in paragraph (e) of this
section.
(b)
The apparatus will be precooled at
the
specified minimum temperature for
4
hours.
(c)
The apparatus will be worn in the
low
temperature chamber for 30 minutes,
or
for the service time of the apparatus,
whichever
is less.
(d)
During the test period, alternate
1-minute
periods of exercise and rest
will
be required with the exercise periods
consisting
of stepping onto and off
a
box 21.5 cm. (81/2 inches) high at a
rate
of 30 cycles per minute.
(e)(1)
The apparatus shall function
satisfactorily
at the specified minimum
temperature
on duplicate tests.
(2)
The wearer shall have sufficient
unobscured
vision to perform the work.
84.100
(3)
The wearer shall not experience
undue
discomfort because of airflow restriction
or
other physical or chemical
changes
in the operation of the apparatus.
(f)
Auxiliary low-temperature parts
which
are commercially available to
the
user may be used on the apparatus
to
meet the requirements described in
paragraph
(e) of this section.
84.99
Man tests; testing conditions;
general
requirements.
(a)
The man tests described in Tables
1,
2, 3, and 4 of this subpart represent
the
workload performed in the mining,
mineral,
or allied industries by a person
wearing
the apparatus tested.
(b)
The apparatus tested will be worn
by
Institute personnel trained in the
use
of self-contained breathing apparatus,
and
the wearer will, before participating
in
these tests, pass a physical
examination
conducted by a qualified
physician.
(c)
All man tests will be conducted by
the
Institute.
(d)
The apparatus will be examined
before
each man test to ensure that it
is
in proper working order.
(e)
Breathing resistance will be measured
within
the facepiece or mouthpiece
and
the wearers
pulse and respiration
rate
will be recorded during
each
2 minute sample period prescribed
in
tests 1, 2, 3, and 4.
(f)
Man tests 1, 2, 3, 4, 5, and 6 will be
conducted
in duplicate.
(g)
If man tests are not completed
through
no fault of the apparatus, the
test
will be repeated.
84.100
Man tests 1, 2, 3, and 4; requirements.
Man
tests 1, 2, 3, and 4, set forth in
Tables
1, 2, 3, and 4 of this subpart, respectively,
prescribe
the duration and
sequence
of specific activities. These
tests
will be conducted to
(a)
Familiarize the wearer with the
apparatus
during use;
(b)
Provide for a gradual increase in
activity;
(c)
Evaluate the apparatus under different
types
of work and physical orientation;
and
(d)
Provide information on the operating
and
breathing characteristics of
the
apparatus during actual use.
563
84.101
84.101
Man test 5; requirements.
(a)
Test 5 will be conducted to determine
the
maximum length of time the
apparatus
will supply the respiratory
needs
of the wearer while he is sitting
at
rest.
(b)
The wearer will manipulate the
devices
controlling the supply of
breathing
gas to the advantage of the
apparatus.
(c)
Samples of inspiration from within
the
apparatus facepiece or mouthpiece
shall
be taken once every 15 minutes,
and
shall meet the minimum requirement
for
oxygen specified in
84.79(a),
and the maximum allowable
average
concentration of carbon dioxide
specified
in 84.97(c).
(d)
One sample of inspiration will be
taken
in the case of 3-, 5-, and 10-
minute
apparatus.
84.102
Man test 6; requirements.
(a)
Man test 6 will be conducted with
respect
to liquefied breathing gas apparatus
only.
(b)
This test will be conducted to
evaluate
operation of the apparatus in
other
than vertical positions.
42
CFR Ch. I (10110 Edition)
(c)
The wearer will lie face downward
for
one-fourth the service life of the apparatus
with
a full charge of liquefied
breathing
gas, and then a one-quarter
full
charge of liquefied breathing gas.
(d)
The test will be repeated with the
wearer
lying on each side and on his
back.
(e)
The oxygen content of the gas
supplied
to the wearer by the apparatus
will
be continuously measured.
84.103
Man tests; performance requirements.
(a)
The apparatus shall satisfy the
respiratory
requirements of the wearer
for
the classified service time.
(b)
Fogging of the eyepiece shall not
obscure
the wearers
vision, and the
wearer
shall not experience undue discomfort
because
of fit or other characteristics
of
the apparatus.
(c)
When the ambient temperature
during
testing is 24 6 C. (75 10 F.),
the
maximum temperature of inspired
air
recorded during man tests shall not
exceed
the following, after correction
for
deviation from 24 C. (75 F.):
Maximum
permissible
Where
percent
temperature
of inspired air
relative
humid-
Where
service life of apparatus is ity of inspired shall not exceed
air
is F. C.
1/4
hour or less
..........................................................................................................
0100 135 57
1/4
hour to 3/4 hour
.....................................................................................................
050 125 52
50100
1 110 1 43
1
to 2 hours
...............................................................................................................
050 115 46
50100
1105 141
3
hours
......................................................................................................................
050 110 43
50100
1100 1 38
4
hours
......................................................................................................................
050 105 41
50100
1 95 1 35
1
Where percent relative humidity is 50100 and apparatus is designed
for escape only, these maximum permissible temperatures
will
be increased by 5 C (10 F).
84.104
Gas tightness test; minimum (b) Six persons will each wear the ap
requirements.
paratus in the test concentrations
specified
in paragraph (a) of this sec
(a)
Each apparatus will be tested for
tightness
by persons wearing it in an
tion
for 2 minutes and none shall de-
atmosphere
of 1,000 p.p.m. isoamyl ace
tect
the odor or taste of the test vapor.
tate.
564
Public
Health Service, HHS Pt. 84, Subpt. H, Tables
TABLES
TO SUBPART H OF PART 84
TABLE
1DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 1, IN MINUTES
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour 2, 3, and 4 hours
Sampling
and readings ......... .............. .............. .............. 2
2 2 2 Perform 1 hour
test
2, 3, or 4
times
respectively.
Walks
at 4.8 km. (3 miles)
per
hour.
3
5 3 4 8 12 18
Sampling
and readings ......... .............. .............. 2 2 2 2 2
Walks
at 4.8 km. (3 miles)
per
hour.
..............
.............. 3 5 8 12 18
Sampling
and readings ......... .............. .............. 2 2 2 2 2
Walks
at 4.8 km. (3 miles)
per
hour.
..............
.............. .............. .............. 6 13 16
Sampling
and readings ......... .............. .............. ..............
.............. 2 2 2
TABLE
2DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 2, IN MINUTES
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour 2, 3 and
4
hours 1
Sampling
and readings .................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Carries
23 kg. (50 pound) weight
over
overcast .............................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Climbs
vertical treadmill 2 (or
equivalent)
.................................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Climbs
vertical treadmill (or equivalent)
..........................................
Sampling
and readings .................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Climbs
vertical treadmill (or equivalent)
..........................................
Carries
23 kg. (50 pound) weight
over
overcast .............................
Sampling
and readings .................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Climbs
vertical treadmill (or equivalent)
..........................................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
Climbs
vertical treadmill (or equivalent)
..........................................
Carries
20 kg. (45 pound) weight
and
walks at 4.8 km. (3 miles)
per
hour .....................................
Walks
at 4.8 km. (3 miles) per
hour
...........................................
............
............
............
............
1
............
............
............
............
............
............
............
............
............
............
............
1
1
............
............
............
............
1
1
1
............
............
............
............
............
............
............
............
............
............
2
................
1
1
time in
2
minutes
................
1
1
................
................
................
................
................
2
................
1
2
................
................
................
2
1
1
time in
2
minutes
1
1
................
................
................
2
1
1
time in
2
minutes
................
1
1
................
................
................
................
2
3
2
times in
4
minutes
3
1
................
................
2
2
1
3
times in
6
minutes
................
3
1
................
................
................
................
2
4
3
times in
6
minutes
3
1
2
1
2
3
1
4
times in
8
minutes
2
3
1
2
1
................
1
2
6
4
times in
8
minutes
3
1
3
1
2
5
1
5
times in
10
minutes
2
3
1
3
1
2
4
2
10.
5
times in
10
minutes.
5.
1.
5
1.
2.
11.
1.
5
times in
10
minutes.
2.
................
Then
repeat
above
activities
once.
................
................
................
565
Pt.
84, Subpt. H, Tables 42 CFR Ch. I (10110 Edition)
TABLE
2DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 2, IN
MINUTESContinued
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour 2, 3 and
4
hours 1
Sampling
and readings ................. ............ ............
................ 2 2 2 2 ................
1
Total test time for Test 2 for 2-hour, 3-hour, and 4-hour apparatus
is 2 hours.
2
Treadmill shall be inclined 15 from vertical and operated at a speed
of 1 foot per second.
TABLE
3DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 3, IN MINUTES
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour
2,
3 and
4
hours
1
Sampling
and readings ......................... .............. ..............
.............. 2 2 2 2 (2)
Walks
at 4.8 km. (3 miles) per hour ..... .............. .............. 1 1
2 2 3 ..............
Runs
at 9.7 km. (6 miles) per hour ...... 1 1 1 1 1 1 1 ..............
Pulls
20 kg. (45 pound) weight to 5
feet
..................................................... ..............
15 times
in
1
minute
..............
30 times
in
2
minutes
30
times
in
2
minutes
30
times
in
2
minutes
60
times
in
6
minutes
..............
Lies
on side ........................................... 1/2 1 1 2 3 4 5
..............
Lies
on back .......................................... 1/2 1 1 2 2 3 3
..............
Crawls
on hands and knees ................. 1 1 1 2 2 2 2 ..............
Sampling
and readings ......................... .............. ..............
2 .............. 2 2 2 ..............
Runs
at 9.7 km. (6 miles) per hour ...... .............. ..............
.............. 1 1 1 1 ..............
Walks
at 4.8 km. (3 miles) per hour ..... .............. ..............
.............. .............. 2 8 10 ..............
Pulls
20 kg. (45 pound) weight to 5
feet
..................................................... ..............
.............. 30 times
in
2
minutes
..............
60 times
in
6
minutes
60
times
in
6
minutes
60
times
in
6
minutes
..............
Sampling
and readings ......................... .............. ..............
.............. 2 .............. 2 2 ..............
Walks
at 4.8 km. (3 miles) per hour ..... .............. .............. 1
.............. 3 4 10 ..............
Lies
on side ........................................... ..............
.............. .............. .............. .............. 2 4
..............
Lies
on back .......................................... ..............
.............. .............. .............. .............. 2 1
..............
Sampling
and readings ......................... .............. ..............
.............. .............. 2 2 2 ..............
1
Total test time for Test 3 for 2-hour, 3-hour, and 4-hour apparatus
is 2 hours.
2
Perform test No. 3 for 1 hr. apparatus; then perform test No. 1 for 1
hour apparatus.
TABLE
4DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 4, IN MINUTES
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour 2 hours 3 hours 4 hours
Sampling
and
readings
......... .............. .............. .............. 2 2 2 2 (2)
(3) (4)
Walks
at 4.8 km.
(3
miles) per
hour
............... .............. .............. .............. 1 2 2 2
.............. .............. ..............
Climbs
vertical
treadmill
1 (or
equivalent)
..... 1 1 1 1 1 1 1 .............. .............. ..............
Walks
at 4.8 km.
(3
miles) per
hour
............... .............. 1 1 1 2 2 2 ..............
.............. ..............
Pulls
20 kg. (45
pound)
weight
to
5 feet ......... .............. 30 times
in
2
minutes
30
times
in
2
minutes
30
times
in
2
minutes
60
times
in
5
minutes
60
times
in
5
minutes
60
times
in
5
minutes
..............
.............. ..............
Walks
at 4.8 km.
(3
miles) per
hour
............... .............. .............. 1 1 1 2 3
.............. .............. ..............
566
Public
Health Service, HHS 84.110
TABLE
4DURATION AND SEQUENCE OF SPECIFIC ACTIVITIES FOR TEST 4, IN
MINUTESContinued
[42
CFR part 84, subpart H]
Activity
Service
time
3
minutes
5
minutes
10
minutes
15
minutes
30
minutes
45
minutes
1
hour 2 hours 3 hours 4 hours
Carries
23 kg.
(50
pound)
weight
over
overcast
.........
Sampling
and
readings
.........
Walks
at 4.8 km.
(3
miles) per
hour
...............
Runs
at 9.7 km.
(6
miles) per
hour
...............
Carries
23 kg.
(50
pound)
weight
over
overcast
.........
Pulls
20 kg (45
pound)
weight
to
5 feet .........
Sampling
and
readings
.........
Walks
at 4.8 km.
(3
miles) per
hour
...............
Pulls
20 kg. (45
pound)
weight
to
5 feet .........
Carries
20 kg.
(45
pound)
weight
and
walks
at 4.8
km.
(3 miles)
per
hour .........
Sampling
and
readings
.........
..............
..............
..............
..............
..............
15
times
in
1
minute
..............
1
..............
..............
..............
..............
..............
..............
1
..............
..............
..............
..............
..............
..............
..............
..............
2
..............
1
1
time in
1
minute
..............
..............
1
..............
..............
..............
1
time in
1
minute
..............
1
1
1
time in
1
minute
15
times
in
1
minute
2
..............
..............
..............
..............
1
time in
1
minute
2
3
1
2
times
in
3
minutes
60
times
in
5
minutes
2
..............
..............
..............
..............
2
times
in
3
minutes
2
3
1
4
times
in
6
minutes
30
times
in
2
minutes
2
2
60
times
in
5
minutes
3
2
4
times
in
8
minutes
2
4
1
6
times
in
9
minutes
36
times
in
3
minutes
2
6
60
times
in
5
minutes
3
2
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
..............
1
Treadmill shall be inclined 15 from vertical and operated at a speed
of 30 cm. (1 foot) per second.
2
Perform test No. 1 for 30-minute apparatus; then perform test No. 4
for 1-hour apparatus; then perform test No. 1 for 30-
minute
apparatus.
3
Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for
1-hour apparatus; then perform test No. 1 for 1-hour apparatus.
4
Perform test No. 1 for 1-hour apparatus; then perform test No. 4 for
1-hour apparatus; then perform test No. 1 for 1-hour apparatus
twice
(i.e., two one-hour tests).
Subpart
IGas Masks
84.110
Gas masks; description.
(a)
Gas masks including all completely
assembled
air purifying masks
designed
for use as respiratory protection
during
entry into atmospheres not
immediately
dangerous to life or
health
or escape only from hazardous
atmospheres
containing adequate oxygen
to
support life are described as follows:
(1)
Front-mounted or back-mounted gas
mask.
A gas mask which consists of a
full
facepiece, a breathing tube, a canister
at
the front or back, a canister
harness,
and associated connections.
(2)
Chin-style gas mask. A gas mask
which
consists of a full facepiece, a
canister
which is usually attached to
the
facepiece, and associated connections.
567
84.111
(3)
Escape gas mask. A gas mask designed
for
use during escape only from
hazardous
atmospheres which consists
of
a facepiece or mouthpiece, a canister,
and
associated connections.
(b)
Gas masks shall be further described
according
to the types of gases
or
vapors against which they are designed
to
provide respiratory protection,
as
follows:
Type
of front-mounted or back-mounted gas mask:
Acid
gas 1,2,3
Ammonia
Carbon
monoxide
Organic
Vapor 1,2,3
Other
gas(es) and vapor(s) 1,2,3
Combination
of two or more of the above gases
and
vapors. 1,2,3
Combination
of acid gas, ammonia, carbon mon
oxide,
and organic vapors. 1,2,3
Type
of chin-style gas mask:
Acid
gas 1,2,3
Ammonia
Carbon
monoxide
Organic
vapor 1,2,3
Other
gas(es) and vapor 1,2,3
Combination
of two or more of the above gases
and
vapors. 1,2,3
Type
of escape gas mask:
Acid
gas 1,2,3,4
Ammonia
4
Carbon
monoxide
Organic
vapor 1,2,3,4
Other
gas(s) and vapor(s) 1,2,3,4
Combination
of two or more of the above gases
and
vapors. 1,2,3,4
1
Approval may be for acid gases or organic vapors as a
class
or for specific acid gases or organic vapors.
2
Not for use against gases or vapors with poor warning
properties
(except where MSHA or Occupational Safety and
Health
Administration standards permit such use for a specific
gas
or vapor), or those which generate high heats or reaction
with
sorbent materials in the canister.
3
Use of the gas mask may be limited by factors such as
lower
explosive limit, toxicological effects, and facepiece fit.
Limitations
on gas mask service life and sorbent capacity
limitations
shall be specified by the applicant in instructions
for
selection, use and maintenance of the gas mask.
4
Eye protection may be required in certain concentrations
of
gases and vapors.
(c)
Gas masks for respiratory protection
against
gases and vapors other
than
those specified in paragraph (b) of
this
section, may be approved upon
submittal
of an application in writing
for
approval to the Certification and
Quality
Assurance Branch listing the
gas
or vapor and suggested maximum
use
concentration for the specific type
of
gas mask. The Institute will consider
the
application and accept or reject
it
on the basis of effect on the
wearers
health and safety and any
field
experience in use of gas masks for
such
exposures. If the application is ac42
CFR
Ch. I (10110 Edition)
cepted,
the Institute will test such
masks
in accordance with the requirements
of
this subpart.
84.111
Gas masks; required components.
(a)
Each gas mask described in
84.110
shall, where its design requires,
contain
the following component parts:
(1)
Facepiece or mouthpiece and
noseclip;
(2)
Canister or cartridge;
(3)
Canister harness;
(4)
External check valve; and
(5)
Breathing tube.
(b)
The components of each gas mask
shall
meet the minimum construction
requirements
set forth in subpart G of
this
part.
84.112
Canisters and cartridges in
parallel;
resistance requirements.
Where
two or more canisters or cartridges
are
used in parallel, their resistance
to
airflow shall be essentially
equal.
84.113
Canisters and cartridges;
color
and markings; requirements.
The
color and markings of all canisters
and
cartridges or labels shall
conform
with the requirements of the
American
National Standards Institute,
American
National Standard for
Identification
of Air-Purifying Respirator
Canisters
and Cartridges, ANSI
K13.11973.
ANSI K13.1 is incorporated
by
reference and has been approved by
the
Director of the Federal Register in
accordance
with 5 U.S.C. 552(a) and 1
CFR
part 51. Copies may be obtained
from
American National Standards Institute,
Inc.,
1430 Broadway, New York,
NY
10018. Copies may be inspected at
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888, or
at
the National Archives and Records
Administration
(NARA). For information
on
the availability of this material
at
NARA, call 2027416030, or go
to:
http://www.archives.gov/
federallregister/
codeloflfederallregulations/
ibrllocations.html.
568
Public
Health Service, HHS
84.114
Filters used with canisters
and
cartridges; location; replacement.
(a)
Particulate matter filters used in
conjunction
with a canister or cartridge
shall
be located on the inlet side
of
the canister or cartridge.
(b)
Filters shall be incorporated in or
firmly
attached to the canister or cartridge
and
each filter assembly shall,
where
applicable, be designed to permit
its
easy removal from and replacement
in
the canister or cartridge.
84.115
Breathing tubes; minimum requirements.
Flexible
breathing tubes used in conjunction
with
gas masks shall be designed
and
constructed to prevent:
(a)
Restriction of free head movement;
(b)
Disturbance of the fit of
facepieces
or mouthpieces;
(c)
Interference with the wearers
activities;
and
(d)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.116
Harnesses; installation and
construction;
minimum requirements.
(a)
Each gas mask shall, where necessary,
be
equipped with a suitable harness
designed
and constructed to hold
the
components of the gas mask in position
against
the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of gas mask parts, and
where
applicable, provide for holding a
full
facepiece in the ready position
when
not in use.
84.117
Gas mask containers; minimum
requirements.
(a)
Gas masks shall be equipped with
a
substantial, durable container bearing
markings
which show the applicants
name,
the type and commercial
designation
of mask it contains and all
appropriate
approval labels.
(b)
Containers for gas masks shall be
designed
and constructed to permit
easy
removal of the mask.
84.120
84.118
Half-mask facepieces, full
facepieces,
and mouthpieces; fit;
minimum
requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Full facepieces shall provide for
optional
use of corrective spectacles or
lenses,
which shall not reduce the respiratory
protective
qualities of the gas
mask.
(c)
Half-mask facepieces shall not
interfere
with the fit of common industrial
safety
spectacles, as determined
by
the Institutes
facepiece tests in
84.124.
(d)
Gas masks with mouthpieces shall
be
equipped with noseclips which are
securely
attached to the mouthpiece or
gas
mask and provide an airtight seal.
(e)
Facepieces shall be designed to
prevent
eyepiece fogging.
84.119
Facepieces; eyepieces; minimum
requirements.
(a)
Full facepieces shall be designed
and
constructed to provide adequate vision
which
is not distorted by the eye.
(b)
All eyepieces shall be designed
and
constructed to be impact and penetration
resistant.
Federal Specification,
Mask,
Air Line: and Respirator,
Air
Filtering, Industrial, GGG-M-125d,
October
11, 1965 with interim amendment-
1,
July 30, 1969, is an example of
an
appropriate standard for determining
impact
and penetration resistance.
Copies
of GGG-M-125d may be obtained
from
the NIOSH, Certification
and
Quality Assurance Branch, 1095
Willowdale
Road, Morgantown, WV
265052888.
84.120
Inhalation and exhalation
valves;
minimum requirements.
(a)
Inhalation and exhalation valves
shall
be provided where necessary and
protected
against damage and distortion.
569
84.121
(b)
Inhalation valves shall be designed
and
constructed to prevent excessive
exhaled
air from adversely affecting
cartridges,
canisters, and filters.
(c)
Exhalation valves shall be protected
against
external influence, and
designed
and constructed to prevent inward
leakage
of contaminated air.
84.121
Head harnesses; minimum requirements.
(a)
Facepieces shall be equipped with
adjustable
and replaceable head harnesses,
designed
and constructed to
provide
adequate tension during use
and
an even distribution of pressure
over
the entire area in contact with
the
face.
42
CFR Ch. I (10110 Edition)
(b)
Mouthpieces shall be equipped,
where
applicable, with adjustable and
replaceable
harnesses designed and
constructed
to hold the mouthpiece in
place.
84.122
Breathing resistance test; minimum
requirements.
(a)
Resistance to airflow will be
measured
in the facepiece or mouthpiece
of
a gas mask mounted on a
breathing
machine both before and
after
each test conducted in accordance
with
84.124, 84.125, and 84.126, with air
flowing
at a continuous rate of 85 liters
per
minute.
(b)
The maximum allowable resistance
requirements
for gas masks are as
follows:
MAXIMUM
RESISTANCE
[mm.
water-column height]
Type
of gas mask
Inhalation
Exhalation
Initial
Final 1
Front-mounted
or back-mounted (without particulate filter)
..........................................
Front-mounted
or back-mounted (with approved particulate filter)
...............................
Chin-style
(without particulate filter)
..............................................................................
Chin-style
(with approved particulate filter)
...................................................................
Escape
(without particulate filter)
..................................................................................
Escape
(with approved particulate filter)
.......................................................................
60
70
40
65
60
70
75
85
55
80
75
85
20
20
20
20
20
20
1
Measured at end of the service life specified in Tables 5, 6, and 7
of this subpart.
84.123
Exhalation valve leakage test.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. water-column height while in a
normal
operating position.
(b)
Leakage between the valve and
valve
seat shall not exceed 30 milliliters
per
minute.
84.124
Facepiece tests; minimum requirements.
(a)
The complete gas mask will be
fitted
to the faces of persons having
varying
facial shapes and sizes.
(b)
Where the applicant specifies a
facepiece
size or sizes for the gas mask,
together
with the approximate measurements
of
faces they are designed to
fit,
the Institute will insure that test
subjects
suit such facial measurements.
(c)
Any gas mask parts which must
be
removed to perform the facepiece or
mouthpiece
fit test shall be replaceable
without
special tools and without disturbing
the
facepiece or mouthpiece
fit.
(d)
The facepiece or mouthpiece fit
test,
using positive or negative pressure
recommended
by the applicant
and
described in his instructions will
be
used before each test specified in
paragraph
(e) of this section, and in
84.125.
(e)(1)
Each wearer will enter a chamber
containing
100 p.p.m. isoamyl acetate
vapor
for a half-mask facepiece
and
1,000 p.p.m. isoamyl acetate vapor
for
a full facepiece or mouthpiece.
(2)
The facepiece or mouthpiece may
be
adjusted, if necessary, in the test
chamber
before starting the tests.
(3)
Each wearer will remain in the
chamber
for 8 minutes while performing
the
following activities:
(i)
Two minutes, nodding and turning
head;
(ii)
Two minutes, calisthenic arm
movements;
(iii)
Two minutes, running in place;
and
570
Public
Health Service, HHS
(iv)
Two minutes, pumping with a
tire
pump into a 28 liter (1 cubic foot)
container.
(4)
Each wearer shall not detect the
odor
of isoamyl acetate during the
test.
84.125
Particulate tests; canisters
containing
particulate filters; min
imum
requirements.
Gas
mask canisters containing filters
for
protection against particulates (e.g.
dusts,
fumes, mists, and smokes) in
combination
with gases, vapors, or
gases
and vapors, shall also comply
with
the requirements as prescribed in
84.170
through 84.183, except for the
airflow
resistance test of 84.181.
84.126
Canister bench tests; minimum
requirements.
(a)(1)
Bench tests, except for carbon
monoxide
tests, will be made on an apparatus
that
allows the test atmosphere
at
50 5 percent relative humidity
and
room temperature (25 2.5 C.)
to
enter the canister continuously at
concentrations
and rates of flow specified
in
Tables 5, 6, and 7 of this subpart.
(2)
Three canisters will be removed
from
containers and tested as received
from
the applicant.
(3)
Two canisters, other than those
described
in paragraph (a)(2) of this
section,
will be equilibrated at room
temperature
by passing 25 percent relative
humidity
air through them at 64
liters
per minute for 6 hours.
(4)
Two canisters, other than those
described
in paragraphs (a) (2) and (3)
Pt.
84, Subpt. I, Tables
of
this section, will be equilibrated at
room
temperature by passing 85 percent
relative
humidity air through
them
at 64 liters per minute for 6
hours.
(5)
The equilibrated canisters will be
resealed,
kept in an upright position at
room
temperature, and tested within 18
hours.
(b)
Front-mounted and back-mounted
gas
mask canisters will be tested and
shall
meet the minimum requirements
set
forth in Table 5 of this subpart.
(c)(1)
Front-mounted, and back-
mounted,
and chin-style canisters designated
as
providing respiratory protection
against
gases, ammonia, organic
vapors,
carbon monoxide and particulate
contaminants
shall have a
window
or other indicator to warn the
gas
mask wearer when the canister will
no
longer satisfactorily remove carbon
monoxide
from the inhaled air.
(2)
Other types of front- and back-
mounted
canisters may also be
equipped
with a window or other indicator
to
warn of imminent leakage of
other
gases or vapors.
(3)
The window indicator canisters
will
be tested as regular canisters, but
shall
show a satisfactory indicator
change
or other warning before the allowable
canister
penetration has occurred.
(d)
Chin-style gas mask canisters
shall
meet the minimum requirements
set
forth in Table 6 of this subpart.
(e)
Escape gas mask canisters shall
meet
the minimum requirements set
forth
in Table 7 of this subpart.
TABLES
TO SUBPART I OF PART 84
TABLE
5CANISTER BENCH TESTS AND REQUIREMENTS FOR FRONT-MOUNTED AND
BACK-MOUNTED
GAS
MASK CANISTERS
[42
CFR part 84, subpart I]
Canister
type Test condition
Test
atmosphere
Number
of
tests
Maximum
allowable
penetratin
(parts
per
million)
Minimum
service
life
(minutes)
1Gas
or vapor
Concentration
(parts
per
million)
Flow
rate
(liters
per
minute)
Acid
gas ..................................... As received SO2 20,000 64 3
5 12
Equilibrated
Cl2 20,000 64 3 5 12
SO2
20,000 32 4 5 12
Organic
vapor ............................ As received
Cl2
CCl4
20,000
20,000
32
64
4
3
5
5
12
12
Equilibrated
CCl4 20,000 32 4 5 12
Ammonia
.................................... As received NH3 30,000 64 3 50
12
Equilibrated
NH3 30,000 32 4 50 12
Carbon
monoxide ...................... As received CO 20,000 4 64 2 (3) 60
571
Pt.
84, Subpt. I, Tables 42 CFR Ch. I (10110 Edition)
TABLE
5CANISTER BENCH TESTS AND REQUIREMENTS FOR FRONT-MOUNTED AND
BACK-MOUNTED
GAS
MASK CANISTERSContinued
[42
CFR part 84, subpart I]
Canister
type Test condition
Test
atmosphere
Number
of
tests
Maximum
allowable
penetratin
(parts
per
million)
Minimum
service
life
(minutes)
1Gas
or vapor
Concentration
(parts
per
million)
Flow
rate
(liters
per
minute)
Equilibrated
CO 5,000 2 32 3 (3) 60
CO
3,000 2 32 3 (3) 60
Combination
of 2 or 3 of above
types
5
Combination
of all above types 6
1
Minimum life will be determined at the indicated penetration.
2
Relative humidity of test atmosphere will be 95 3pct; temperature of
test atmosphere will be 25 2.5 C.
3
Maximum allowable CO penetration will be 385 cm 3 during the minimum
life. The penetration shall not exceed 500 p/m dur
ing
this time.
4
Relative humidity of test atmosphere will be 95 3pct; temperature of
test atmosphere entering the test fixture will be 0 2.5
C0
C.
5
Test conditions and requirements will be applicable as shown in this
table.
6
Test conditions and requirements will be applicable as shown in this
table, except the minimum service lives for acid gas, or
ganic
vapor, and ammonia will be 6 min instead of 12 min.
TABLE
6CANISTER BENCH TESTS AND REQUIREMENTS FOR CHIN-STYLE GAS MASK
CANISTERS
[42
CFR part 84, subpart I]
Canister
type Test condition
Test
atmosphere
Number
of
tests
Maximum
allowable
penetration
(parts
per
million)
Minimum
service
life
(minutes)
1Gas
or vapor
Concentration
(parts
per
million)
Flow
rate
(liters
per
minute)
Acid
gas ....................... As received Equilibrated
SO2
50,000 64 3 5 12
Cl2
5,000 64 3 5 12
SO2
5,000 32 4 5 12
Cl2
5,000 32 4 5 12
Organic
vapor .............. As received Equilibrated
CCl4
5,000 64 3 5 12
CCl4
5,000 32 4 5 12
Ammonia
..................... As received Equilibrated
NH3
5,000 64 3 50 12
As
received Equilibrated
NH3
5,000 32 4 50 12
Carbon
monoxide ........ As received CO 20,000 2 64 2 (3) 60
CO
5,000 4 32 3 (3) 60
Combination
of 2 or 3
of
above types 5
Combination
of all
above
types 6
CO
3,000 2 32 3 (3) 60
1
Minimum life will be determined at the indicated penetration.
2
Relative humidity of test atmosphere will be 95 3pct; temperature of
test atmosphere will be 25 2.5 C.
3
Maximum allowable CO penetration will be 385 cm 3 during the minimum
life. The penetration shall not exceed 500 p/m dur
ing
this time.
4
Relative humidity of test atmosphere will be 95 3pct; temperature of
test atmosphere entering the test fixture will be 0 2.5
C0
C.
5
Test conditions and requirements will be applicable as shown in this
table.
6
Test conditions and requirements will be applicable as shown in this
table, except the minimum service lives for acid gas, or
ganic
vapor, and ammonia will be 6 min instead of 12 min.
TABLE
7CANISTER BENCH TESTS AND REQUIREMENTS FOR ESCAPE GAS MASK CANISTERS
[42
CFR part 84, subpart I]
Test
atmosphere Maximum
allowable
Minimum
Canister
type Test condition
Gas
or vapor
Concentration
(parts
per
million)
Flow
rate
(liters
per
minute)
Number
of
tests
penetration
(parts
per
million)
service
life
(minutes)
1
Acid
gas ....................... As received ................ SO2 5,000 64
3 5 12
Equilibrated
................ Cl2
SO2
5,000
5,000
64
32
3
4
5
5
12
12
Cl2
5,000 32 4 5 12
572
Public
Health Service, HHS 84.130
TABLE
7CANISTER BENCH TESTS AND REQUIREMENTS FOR ESCAPE GAS MASK CANISTERS
Continued
[42
CFR part 84, subpart I]
Test
atmosphere Maximum
allowable
Minimum
Canister
type Test condition
Gas
or vapor
Concentration
(parts
per
million)
Flow
rate
(liters
per
minute)
Number
of
tests
penetration
(parts
per
million)
service
life
(minutes)
1
Organic
vapor ..............
Ammonia
.....................
As
received ................
Equilibrated
................
As
received ................
CCl4
CCl4
NH3
5,000
5,000
5,000
64
32
64
3
4
3
5
5
50
12
12
12
Carbon
monoxide ........
Equilibrated
................
As
received ................
NH3
CO
CO
CO
5,000
10,000
5,000
3,000
32
2
32
5
32
2
32
4
2
3
3
50
(3)
(3)
(3)
12
4
60
60
60
1
Minimum life will be determined at the indicated penetration.
2
Relative humidity of test atmosphere will be 95 3 pct; temperature of
test atmosphere will be 25 2.5 C.
3
Maximum allowable CO penetration will be 385 cm 3 during the minimum
life. The penetration shall not exceed 500 p/m during
this
time.
4
If effluent temperature exceeds 100 C during this test, the escape
gas mask shall be equipped with an effective heat exchanger.
5
Relative humidity of test atmosphere will be 95 3 pct; temperature of
test atmosphere entering the test fixture will be 0 2.5
C0
C.
Subpart
JSupplied-Air
Respirators
84.130
Supplied-air respirators; description.
Supplied-air
respirators, including
all
completely assembled respirators
designed
for use as respiratory protection
during
entry into and escape from
atmospheres
not immediately dangerous
to
life or health are described as
follows:
(a)
Type A
supplied-air respirators. A
hose
mask respirator, for entry into
and
escape from atmospheres not immediately
dangerous
to life or health,
which
consists of a motor-driven or
hand-operated
blower that permits the
free
entrance of air when the blower is
not
operating, a strong large-diameter
hose
having a low resistance to airflow,
a
harness to which the hose and the
life-line
are attached and a tight-fitting
facepiece.
(b)
Type AE
supplied-air respirators.
A
Type A
supplied-air respirator
equipped
with additional devices designed
to
protect the wearers
head and
neck
against impact and abrasion from
rebounding
abrasive material, and with
shielding
material such as plastic,
glass,
woven wire, sheet metal, or
other
suitable material to protect the
window(s)
of facepieces, hoods, and helmets
which
do not unduly interfere
with
the wearers
vision and permit
easy
access to the external surface of
such
window(s) for cleaning.
(c)
Type B
supplied-air respirators. A
hose
mask respirator, for entry into
and
escape from atmospheres not immediately
dangerous
to life or health,
which
consists of a strong large-diameter
hose
with low resistance to airflow
through
which the user draws inspired
air
by means of his lungs alone, a harness
to
which the hose is attached, and
a
tight-fitting facepiece.
(d)
Type BE
supplied-air respirators.
A
type B
supplied-air respirator
equipped
with additional devices designed
to
protect the wearers
head and
neck
against impact and abrasion from
rebounding
abrasive material, and with
shielding
material such as plastic,
glass,
woven wire, sheet metal, or
other
suitable material to protect the
window(s)
of facepieces, hoods, and helmets
which
do not unduly interfere
with
the wearers
vision and permit
easy
access to the external surface of
such
window(s) for cleaning.
(e)
Type C
supplied-air respirators.
An
airline respirator, for entry into
and
escape from atmospheres not immediately
dangerous
to life or health,
which
consists of a source of respirable
breathing
air, a hose, a detachable coupling,
a
control valve, orifice, a demand
valve
or pressure demand valve,
an
arrangement for attaching the hose
to
the wearer, and a facepiece, hood, or
helmet.
573
84.131
(f)
Type CE
supplied-air respirators.
A
type C
supplied-air respirator
equipped
with additional devices designed
to
protect the wearers
head and
neck
against impact and abrasion from
rebounding
abrasive material, and with
shielding
material such as plastic,
glass,
woven wire, sheet metal, or
other
suitable material to protect the
window(s)
of facepieces, hoods, and helmets
which
do not unduly interfere
with
the wearers
vision and permit
easy
access to the external surface of
such
window(s) for cleaning.
84.131
Supplied-air respirators; required
components.
(a)
Each supplied-air respirator described
in
84.130 shall, where its design
requires,
contain the following
component
parts:
(1)
Facepiece, hood, or helmet;
(2)
Air supply valve, orifice, or demand
or
pressure-demand regulator;
(3)
Hand operated or motor driven air
blower;
(4)
Air supply hose;
(5)
Detachable couplings;
(6)
Flexible breathing tube; and
(7)
Respirator harness.
(b)
The component parts of each sup-
plied-air
respirator shall meet the minimum
construction
requirements set
forth
in subpart G of this part.
84.132
Breathing tubes; minimum requirements.
Flexible
breathing tubes used in conjunction
with
supplied-air respirators
shall
be designed and constructed to
prevent:
(a)
Restriction of free head movement;
(b)
Disturbance of the fit of
facepieces,
mouthpieces, hoods, or helmets;
(c)
Interference with the wearers
activities;
and
(d)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.133
Harnesses; installation and
construction;
minimum requirements.
(a)
Each supplied-air respirator shall,
where
necessary, be equipped with a
suitable
harness designed and constructed
to
hold the components of the
42
CFR Ch. I (10110 Edition)
respirator
in position against the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of respirator parts,
and
where applicable, provide for holding
a
full facepiece in the ready position
when
not in use.
84.134
Respirator containers; minimum
requirements.
Supplied-air
respirators shall be
equipped
with a substantial, durable
container
bearing markings which
show
the applicants
name, the type
and
commercial designation of the respirator
it
contains, and all appropriate
approval
labels.
84.135
Half-mask facepieces, full
facepieces,
hoods, and helmets; fit;
minimum
requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Full facepieces shall provide for
optional
use of corrective spectacles or
lenses,
which shall not reduce the respiratory
protective
qualities of the respirator.
(c)
Hoods and helmets shall be designed
and
constructed to fit persons
with
various head sizes, provide for the
optional
use of corrective spectacles or
lenses,
and insure against any restriction
of
movement by the wearer.
(d)
Facepieces, hoods, and helmets
shall
be designed to prevent eyepiece
fogging.
84.136
Facepieces, hoods, and helmets;
eyepieces;
minimum requirements.
(a)
Facepieces, hoods, and helmets
shall
be designed and constructed to
provide
adequate vision which is not
distorted
by the eyepiece.
(b)
All eyepieces except those on
Types
B, BE, C, and CE supplied-air
respirators
shall be designed and constructed
to
be impact and penetration
resistant.
Federal Specification, Mask,
Air
Line: and Respirator, Air Filtering,
574
Public
Health Service, HHS
Industrial,
GGG-M-125d, October 11,
1965
with interim amendment-1, July
30,
1969, is an example of an appropriate
standard
for determining impact and
penetration
resistance. Copies of GGG-
M-125d
may be obtained from the
NIOSH,
Certification and Quality Assurance
Branch,
1095 Willowdale Road,
Morgantown,
WV 265052888.
(c)(1)
The eyepieces of AE, BE, and
CE
type supplied-air respirators shall
be
shielded by plastic, glass, woven
wire,
sheet metal, or other suitable
material
which does not interfere with
the
vision of the wearer.
(2)
Shields shall be mounted and attached
to
the facepiece to provide easy
access
to the external surface of the
eyepiece
for cleaning.
84.137
Inhalation and exhalation
valves;
check valves; minimum re
quirements.
(a)
Inhalation and exhalation valves
shall
be provided where necessary and
protected
against distortion.
(b)
Exhalation valves shall be:
(1)
Protected against damage and external
influence;
and
(2)
Designed and constructed to prevent
inward
leakage of contaminated
air.
(c)
Check valves designed and constructed
to
allow airflow toward the
facepiece
only shall be provided in the
connections
to the facepiece or in the
hose
fitting near the facepiece of all
Type
A, AE, B, and BE supplied-air respirators.
84.138
Head harnesses; minimum requirements.
Facepieces
shall be equipped with adjustable
and
replaceable head harnesses
which
are designed and constructed
to
provide adequate tension
during
use, and an even distribution of
pressure
over the entire area in contact
with
the face.
84.139
Head and neck protection;
supplied-air
respirators; minimum
requirements.
Type
AE, BE, and CE supplied-air
respirators
shall be designed and constructed
to
provide protection against
impact
and abrasion from rebounding
abrasive
materials to the wearers
head
and
neck.
84.141
84.140
Air velocity and noise levels;
hoods
and helmets; minimum re
quirements.
Noise
levels generated by the respirator
will
be measured inside the
hood
or helmet at maximum airflow
obtainable
within pressure and hose
length
requirements and shall not exceed
80
dBA.
84.141
Breathing gas; minimum requirements.
(a)
Breathing gas used to supply sup-
plied-air
respirators shall be respirable
breathing
air and contain no less than
19.5
volume-percent of oxygen.
(b)
Compressed, gaseous breathing air
shall
meet the applicable minimum
grade
requirements for Type I gaseous
air
set forth in the Compressed Gas Association
Commodity
Specification for
Air,
G7.1, 1966 (Grade D or higher quality).
G7.1
is incorporated by reference
and
has been approved by the Director
of
the Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR part 51.
Copies
may be obtained from American
National
Standards Institute, Inc., 1430
Broadway,
New York, NY 10018. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
codeloflfederallregulations/
ibrllocations.html.
(c)
Compressed, liquefied breathing
air
shall meet the applicable minimum
grade
requirements for Type II liquid
air
set forth in the Compressed Gas Association
Commodity
Specification for
Air,
G7.1, 1966 (Grade B or higher quality).
G7.1
is incorporated by reference
and
has been approved by the Director
of
the Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR part 51.
Copies
may be obtained from American
National
Standards Institute, Inc., 1430
Broadway,
New York, NY 10018. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
575
84.142
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
codeloflfederallregulations/
ibrllocations.html.
84.142
Air supply source; hand-operated
or
motor driven air blowers;
Type
A supplied-air respirators;
minimum
requirements.
(a)
Blowers shall be designed and constructed
to
deliver an adequate amount
of
air to the wearer with either direction
of
rotation, unless constructed to
permit
rotation in one direction only,
and
to permit the free entrance of air
to
the hose when the blower is not operated.
(b)
No multiple systems, whereby
more
than one user is supplied by one
blower,
will be approved, unless each
hose
line is connected directly to a
manifold
at the blower.
84.143
Terminal fittings or chambers;
Type
B supplied-air respirators;
minimum
requirements.
(a)
Blowers or connections to air supplies
providing
positive pressures shall
not
be approved for use on Type B sup-
plied-air
respirators.
(b)
Terminal fittings or chambers
employed
in Type B supplied-air respirators,
shall
be:
(1)
Installed in the inlet of the hose.
(2)
Designed and constructed to provide
for
the drawing of air through corrosion
resistant
material arranged so
as
to be capable of removing material
larger
than 0.149 mm. in diameter (149
micrometers,
100-mesh, U.S. Standard
sieve).
(3)
Installed to provide a means for
fastening
or anchoring the fitting or
chamber
in a fixed position in a zone of
respirable
air.
84.144
Hand-operated blower test;
minimum
requirements.
(a)
Hand-operated blowers shall be
tested
by attaching them to a mechanical
drive
and operating them 6 to 8
hours
daily for a period of 100 hours at
a
speed necessary to deliver 50 liters of
air
per minute through each completely
assembled
respirator. Each respirator
shall
be equipped with the maximum
length
of hose with which the device
is
to be approved and the hose
42
CFR Ch. I (10110 Edition)
shall
be connected to each blower or
manifold
outlet designed for hose connections.
(b)
The crank speed of the hand-operated
blower
shall not exceed 50 revolutions
per
minute in order to deliver the
required
50 liters of air per minute to
each
facepiece.
(c)
The power required to deliver 50
liters
of air per minute to each wearer
through
the maximum length of hose
shall
not exceed one-fiftieth horsepower,
and
the torque shall not exceed
a
force of 2.3 kg. (5 pounds) on a 20 cm.
(8-inch)
crank, as defined in 84.146.
(d)
The blower shall operate throughout
the
period without failure or indication
of
excessive wear of bearings or
other
working parts.
84.145
Motor-operated blower test;
minimum
requirements.
(a)
Motor-operated blowers shall be
tested
by operating them at their specified
running
speed 6 to 8 hours daily
for
a period of 100 hours when assembled
with
the kind and maximum
length
of hose for which the device is
to
be approved and when connected to
each
blower or manifold outlet designed
for
hose connections.
(b)
The connection between the
motor
and the blower shall be so constructed
that
the motor may be disengaged
from
the blower when the
blower
is operated by hand.
(c)
The blower shall operate throughout
the
period without failure or indication
of
excessive wear of bearings or
other
working parts.
(d)
Where a blower, which is ordinarily
motor
driven, is operated by
hand,
the power required to deliver 50
liters
of air per minute to each wearer
through
the maximum length of hose
shall
not exceed one-fiftieth horsepower,
and
the torque shall not exceed
a
force of 2.3 kg. (5 pounds) on a 20 cm.
(8-inch)
crank, as defined in 84.146.
(e)
Where the respirator is assembled
with
the facepiece and 15 m. (50 feet) of
the
hose for which it is to be approved,
and
when connected to one outlet with
all
other outlets closed and operated at
a
speed not exceeding 50 revolutions of
the
crank per minute, the amount of
air
delivered into the respiratory-inlet
covering
shall not exceed 150 liters per
minute.
576
Public
Health Service, HHS
84.146
Method of measuring the
power
and torque required to oper
ate
blowers.
As
shown in Figure 1 of this section,
the
blower crank is replaced by a wooden
drum,
a (13 cm. (5 inches) in diameter
is
convenient). This drum is wound
with
about 12 m. (40 feet) of No. 2 picture
cord,
b. A weight, c, of sufficient
mass
to rotate the blower at the desired
speed
is suspended from this wire
cord.
A mark is made on the cord about
3
to 4.5 m. (10 to 15 feet) from the
weight,
c. Another mark is placed at a
measured
distance (69 m./2030 feet is
84.148
convenient)
from the first. These are
used
to facilitate timing. To determine
the
torque or horsepower required to
operate
the blower, the drum is started
in
rotation manually at or slightly
above
the speed at which the power
measurement
is to be made. The blower
is
then permitted to assume constant
speed,
and then as the first mark on
the
wire leaves the drum, a stopwatch
is
started. The watch is stopped when
the
second mark leaves the drum.
From
these data the foot-pounds per
minute
and the torque may be calculated.
FIGURE
1APPARATUS FOR MEASURING POWER REQUIRED TO OPERATE
BLOWER.
(42 CFR PART 84, SUBPART J, 84.146)
84.147
Type B supplied-air respirator;
minimum
requirements.
No
Type B supplied-air respirator
shall
be approved for use with a blower
or
with connection to an air supply device
at
positive pressures.
84.148
Type C supplied-air respirator,
continuous
flow class; minimum
requirements.
(a)
Respirators tested under this section
shall
be approved only when they
577
84.149
supply
respirable air at the pressures
and
quantities required.
(b)
The pressure at the inlet of the
hose
connection shall not exceed 863
kN/m.2
(125 pounds per square inch
gage).
(c)
Where the pressure at any point
in
the supply system exceeds 863 kN/
m.2
(125 pounds per square inch gage),
the
respirator shall be equipped with a
pressure-release
mechanism that will
prevent
the pressure at the hose connection
from
exceeding 863 kN/m.2 (125
pounds
per square inch gage) under any
conditions.
84.149
Type C supplied-air respirator,
demand
and pressure demand
class;
minimum requirements.
(a)
Respirators tested under this section
shall
be approved only when used
to
supply respirable air at the pressures
and
quantities required.
(b)
The manufacturer shall specify
the
range of air pressure at the point of
attachment
of the air-supply hose to
the
air-supply system, and the range of
hose
length for the respirator. For example,
he
might specify that the respirator
be
used with compressed air at
pressures
ranging from 280550 kN/m.2
(40
to 80 pounds per square inch) with
from
6 to 76 m. (15 to 250 feet) of air-
supply
hose.
(c)
The specified air pressure at the
point
of attachment of the hose to the
air-supply
system shall not exceed 863
kN/m.2
(125 pounds per square inch
gage).
(d)(1)
Where the pressure in the air-
supply
system exceeds 863 kN/m.2 (125
pounds
per square inch gage), the respirator
shall
be equipped with a pressure-
release
mechanism that will prevent
the
pressure at the point of attachment
of
the hose to the air-supply
system
from exceeding 863 kN/m.2 (125
pounds
per square inch gage).
(2)
The pressure-release mechanism
shall
be set to operate at a pressure not
more
than 20 percent above the manufacturers
highest
specified pressure.
For
example, if the highest specified
pressure
is 863 kN/m.2 (125 pounds per
square
inch), the pressure-release
mechanism
would be set to operate at
a
maximum of 1,035 kN/m.2 (150 pounds
per
square inch).
42
CFR Ch. I (10110 Edition)
84.150
Air-supply line tests; minimumrequirements.
Air
supply lines employed on Type A,
Type
B, and Type C supplied-air respirators
shall
meet the minimum test
requirements
set forth in Table 8 of
this
subpart.
84.151
Harness test; minimum requirements.
(a)(1)
Shoulder straps employed on
Type
A supplied-air respirators shall be
tested
for strength of material, joints,
and
seams and must separately withstand
a
pull of 113 kg. (250 pounds) for
30
minutes without failure.
(2)
Belts, rings, and attachments for
life
lines must withstand a pull of 136
kg.
(300 pounds) for 30 minutes without
failure.
(3)
The hose shall be firmly attached
to
the harness so as to withstand a pull
of
113 kg. (250 pounds) for 30 minutes
without
separating, and the hose attachments
shall
be arranged so that
the
pull or drag of the hose behind an
advancing
wearer does not disarrange
the
harness or exert pull upon the face-
piece.
(4)
The arrangement and suitability
of
all harness accessories and fittings
will
be considered.
(b)(1)
The harness employed on Type
B
supplied-air respirators shall not be
uncomfortable,
disturbing, or interfere
with
the movements of the wearer.
(2)
The harness shall be easily adjustable
to
various sizes.
(3)
The hose shall be attached to the
harness
in a manner that will withstand
a
pull of 45 kg. (100 pounds) for 30
minutes
without separating or showing
signs
of failure.
(4)
The design of the harness and attachment
of
the line shall permit dragging
the
maximum length of hose considered
for
approval over a concrete
floor
without disarranging the harness
or
exerting a pull on the facepiece.
(5)
The arrangement and suitability
of
all harness accessories and fittings
will
be considered.
(c)
The harness employed on Type C
respirators
shall be similar to that required
on
the Type B respirator, or, it
may
consist of a simple arrangement
for
attaching the hose to a part of the
wearers
clothing in a practical manner
578
Public
Health Service, HHS
that
prevents a pull equivalent to dragging
the
maximum length of the hose
over
a concrete floor from exerting pull
upon
the respiratory-inlet covering.
(d)
Where supplied-air respirators
have
a rigid or partly rigid head covering,
a
suitable harness shall be required
to
assist in holding this covering
in
place.
84.152
Breathing tube test; minimum
requirements.
(a)(1)
Type A and Type B supplied-air
respirators
shall employ one or two
flexible
breathing tubes of the
nonkinking
type which extend from
the
facepiece to a connecting hose coupling
attached
to the belt or harness.
(2)
The breathing tubes employed
shall
permit free head movement, insure
against
closing off by kinking or
by
chin or arm pressure, and they shall
not
create a pull that will loosen the
facepiece
or disturb the wearer.
(b)
Breathing tubes employed on
Type
C supplied-air respirators of the
continuous
flow class shall meet the
minimum
requirements set forth in
paragraph
(a) of this section, however,
an
extension of the connecting hose
may
be employed in lieu of the breathing
tubes
required.
(c)(1)
A flexible, nonkinking type
breathing
tube shall:
(i)
Be employed on Type C supplied-
air
respirators of the demand and pressure-
demand
class; and
(ii)
Extend from the facepiece to the
demand
or pressure-demand valve, except
where
the valve is attached directly
to
the facepiece.
(2)
The breathing tube shall permit
free
head movement, insure against
closing
off by kinking or by chin or
arm
pressure, and shall not create a
pull
that will loosen the facepiece or
disturb
the wearer.
84.153
Airflow resistance test, Type A
and
Type AE supplied-air res
pirators;
minimum requirements.
(a)
Airflow resistance will be determined
when
the respirator is completely
assembled
with the respiratory-
inlet
covering, the air-supply device,
and
the maximum length of air-supply
hose
coiled for one-half its length in
loops
1.5 to 2.1 m. (5 to 7 feet) in diameter.
84.156
(b)
The inhalation resistance, drawn
at
the rate of 85 liters (3 cubic feet) per
minute
when the blower is not operating
or
under any practical condition
of
blower operation shall not exceed
the
following amounts:
Maximum
length of hose for
Maximum
resistance, water
which
respirator is approved
column
height
Feet
Meters
Inches
Millimeters
75
23
1.5
38
150
46
2.5
64
250
76
3.5
89
300
91
4.0
102
(c)
The exhalation resistance shall
not
exceed 25 mm. (1 inch) of water-column
height
at a flow rate of 85 liters (3
cubic
feet) per minute when the blower
is
not operating or under any practical
condition
of blower operation.
84.154
Airflow resistance test; Type Band Type BE supplied-air respirators;
minimum
requirements.
(a)
Airflow resistance shall be determined
when
the respirator is completely
assembled
with the respiratory-
inlet
covering and the hose in the maximum
length
to be considered for approval,
coiled
in loops 1.5 to 2.1 m. (5 to
7
feet) in diameter.
(b)
Airflow resistance shall not exceed
38
mm. (1.5 inches) of water-column
height
to air drawn at the flow
rate
of 85 liters (3 cubic feet) per
minute.
(c)
The exhalation resistance shall
not
exceed 25 mm. (1 inch) of water-column
height
at this flow rate.
84.155
Airflow resistance test; Type Csupplied-air respirator, continuous
flow
class and Type CE supplied-air
respirator;
minimum requirements.
The
resistance to air flowing from
the
respirator shall not exceed 25 mm.
(1
inch) of water-column height when
the
air flow into the respiratory-inlet
covering
is 115 liters (4 cubic feet) per
minute.
84.156
Airflow resistance test; Type Csupplied-air respirator, demand
class;
minimum requirements.
(a)
Inhalation resistance shall not exceed
50
millimeters (2 inches) of water
at
an air flow of 115 liters (4 cubic feet)
per
minute.
579
84.157
(b)
The exhalation resistance to a
flow
of air at a rate of 85 liters (3 cubic
feet)
per minute shall not exceed 25
millimeters
(1 inch) of water.
84.157
Airflow resistance test; Type C
supplied-air
respirator, pressure-
demand
class; minimum requirements.
(a)
The static pressure in the face-
piece
shall not exceed 38 mm. (1.5
inches)
of water-column height.
(b)
The pressure in the facepiece
shall
not fall below atmospheric at inhalation
airflows
less than 115 liters (4
cubic
feet) per minute.
(c)
The exhalation resistance to a
flow
of air at a rate of 85 liters (3 cubic
feet)
per minute shall not exceed the
static
pressure in the facepiece by
more
than 51 mm. (2 inches) of water-
column
height.
84.158
Exhalation valve leakage test.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. water-column height while in a
normal
operating position.
(b)
Leakage between the valve and
valve
seat shall not exceed 30 milliliters
per
minute.
84.159
Man tests for gases and vapors;
supplied-air
respirators; general
performance
requirements.
(a)
Wearers will enter a chamber containing
a
gas or vapor as prescribed in
84.160,
84.161, 84.162, and 84.163.
(b)
Each wearer will spend 10 minutes
in
work to provide observations on
freedom
of the device from leakage.
The
freedom and comfort allowed the
wearer
will also be considered.
(c)
Time during the test period will
be
divided as follows:
(1)
Five minutes. Walking, turning
head,
dipping chin; and
(2)
Five minutes. Pumping air with a
tire
pump into a 28-liter (1 cubic foot)
container,
or equivalent work.
(d)
No odor of the test gas or vapor
shall
be detected by the wearer in the
air
breathed during any such test, and
the
wearer shall not be subjected to
any
undue discomfort or encumbrance
because
of the fit, air delivery, or other
features
of the respirator during the
testing
period.
42
CFR Ch. I (10110 Edition)
84.160
Man test for gases and vapors;
Type
A and Type AE respirators;
test
requirements.
(a)
The completely assembled respirator
will
be worn in a chamber containing
0.1
0.025 percent isoamyl acetate
vapor,
and the blower, the intake
of
the hose, and not more than 25 percent
of
the hose length will be located
in
isoamyl acetate-free air.
(b)
The man in the isoamyl acetate
atmosphere
will draw his inspired air
through
the hose, connections, and all
parts
of the air device by means of his
lungs
alone (blower not operating).
(c)
The 10-minute work test will be
repeated
with the blower in operation
at
any practical speed up to 50 revolutions
of
the crank per minute.
84.161
Man test for gases and vapors;
Type
B and Type BE respirators;
test
requirements.
(a)
The completely assembled respirator
will
be worn in a chamber containing
0.1
0.025 percent isoamyl acetate
vapor,
and the intake of the hose,
and
not more than 25 percent of the
hose
length will be located in isoamyl
acetate-free
air.
(b)
The man in the isoamyl acetate
atmosphere
will draw his inspired air
through
the hose and connections by
means
of his lungs alone.
84.162
Man test for gases and vapors;
Type
C respirators, continuous-flow
class
and Type CE supplied-air respirators;
test
requirements.
(a)
The completely assembled respirator
will
be worn in a chamber containing
0.1
0.025 percent isoamyl acetate
vapor,
the intake of the hose will
be
connected to a suitable source of
respirable
air, and not more than 25
percent
of the hose length will be located
in
isoamyl acetate-free air.
(b)
The minimum flow of air required
to
maintain a positive pressure in the
respiratory-inlet
covering throughout
the
entire breathing cycle will be supplied
to
the wearer, provided however,
that
airflow shall not be less than 115
liters
per minute for tight-fitting and
not
less than 170 liters per minute for
loose-fitting
respiratory inlet-coverings.
580
Public
Health Service, HHS
(c)
The test will be repeated with the
maximum
rate of flow attainable within
specified
operating pressures.
84.163
Man test for gases and vapors;
Type
C supplied-air respirators, demand
and
pressure-demand classes;
test
requirements.
(a)
The completely assembled respirator
will
be worn in a chamber containing
0.1
0.025 percent isoamyl ace-
Pt.
84, Subpt. J, Table
tate
vapor, the intake of the hose will
be
connected to a suitable source of
respirable
air, and not more than 25
percent
of the hose length will be located
in
isoamyl acetate-free air.
(b)
The test will be conducted at the
minimum
pressure with the maximum
hose
length and will be repeated at the
maximum
pressure with the minimum
hose
length.
TABLE
TO SUBPART J OF PART 84
TABLE
8AIR-SUPPLY-LINE REQUIREMENTS AND TESTS
[42
CFR part 84, subpart J]
Specific
requirements
Requirements
for the air-supply lines of the indicated type of supplied-air
respirators
Type
A Type B Type C
Length
of hose .............. Maximum of 91 m. (300
feet),
in multiples of
7.6
m. (25 feet).
Maximum
of 23 m. (75
feet)
in multiples of
7.6
m. (25 feet).
Maximum
of 91 m. (300 feet) in multiples of 7.6
m.
(25 feet). It will be permissible for the applicant
to
supply hose of the approved type of
shorter
length than 7.6 m. (25 feet) provided it
meets
the requirements of the part.
Air
flow ........................... None .............................
None ............................. The air-supply hose with air
regulating valve or
orifice
shall permit a flow of not less than 115
liters
(4 cubic feet) per minute to tight-fitting
and
170 liters (6 cubic feet) per minute to
loose-fitting
respiratory-inlet coverings through
the
maximum length of hose for which approval
is
granted and at the minimum specified
air-supply
pressure. The maximum flow
shall
not exceed 425 liters (15 cubic feet) per
minute
at the maximum specified air-supply
pressure
with the minimum length of hose for
which
approval is granted.
Air
flow ........................... ......do
............................ ......do ............................
The air-supply hose, detachable coupling, and
demand
valve of the demand class or pressure-
demand
valve of the pressure-demand
class
for Type C supplied-air respirators, demand
and
pressure-demand classes, shall be
capable
of delivering respirable air at a rate of
not
less than 115 liters (4 cubic feet) per
minute
to the respiratory-inlet covering at an
inhalation
resistance not exceeding 50 millimeters
(2
inches) of water-column height
measured
in the respiratory-inlet covering with
any
combination of air-supply pressure and
length
of hose within the applicants
specified
range
of pressure and hose length. The air-
flow
rate and resistance to inhalation shall be
measured
while the demand or pressure-demand
valve
is actuated 20 times per minute
by
a source of intermittent suction. The maximum
rate
of flow to the respiratory-inlet covering
shall
not exceed 425 liters (15 cubic
feet)
per minute under the specified operating
conditions.
581
Pt.
84, Subpt. J, Table 42 CFR Ch. I (10110 Edition)
TABLE
8AIR-SUPPLY-LINE REQUIREMENTS AND TESTSContinued
[42
CFR part 84, subpart J]
Specific
requirements
Requirements
for the air-supply lines of the indicated type of supplied-air
respirators
Type
A Type B Type C
Air-regulating
valve ........
Noncollapsibility
.............
Nonkinkability
................
Strength
of hose and
couplings.
......do
............................
The
hose shall not collapse
or
exhibit permanent
deformation
when
a force of 90
kg.
(200 pounds) is
applied
for 5 minutes
between
2 planes 7.6
cm.
(3 inches) wide
on
opposite sides of
the
hose.
None
.............................
Hose
and couplings
shall
not separate or
fail
when tested with
a
pull of 113 kg. (250
pounds)
for 5 minutes.
......do
............................
Same
as Type A ..........
None
.............................
Same
as Type A ..........
If
an air-regulating valve is provided, it shall be
so
designed that it will remain at a specific
adjustment,
which will not be affected by the
ordinary
movement of the wearer. The valve
must
be so constructed that the air supply
with
the maximum length of hose and at the
minimum
specified air-supply pressure will not
be
less than 115 liters (4 cubic feet) of air per
minute
to tight-fitting and 170 liters (6 cubic
feet)
of air per minute of loose-fitting respiratory
inlet
coverings for any adjustment of
the
valve. If a demand or pressure-demand
valve
replaces the air-regulating valve, it shall
be
connected to the air-supply at the maximum
air
pressure for which approval is
sought
by means of the minimum length of
air-supply
hose for which approval is sought.
The
outlet of the demand or pressure-demand
valve
shall be connected to a source of intermittent
suction
so that the demand or pressure-
demand
valve is actuated approximately
20
times per minute for a total of 100,000
inhalations.
To expedite this test, the rate of
actuation
may be increased if mutually agreeable
to
the applicant and NIOSH. During this
test
the valve shall function without failure
and
without excessive wear of the moving
parts.
The demand or pressure-demand valve
shall
not be damaged in any way when subjected
at
the outlet to a pressure or suction of
25
cm. (10 inches) of water gage for 2 minutes.
None.
A
7.6 m. (25 foot) section of the hose will be
placed
on a horizontal-plane surface and
shaped
into a one-loop coil with one end of
the
hose connected to an airflow meter and
the
other end of the hose supplied with air at
the
minimum specified supply pressure. The
connection
shall be in the plane of the loop.
The
other end of the hose will be pulled tangentially
to
the loop and in the plane of the
loop
until the hose straightens. To meet the
requirements
of this test the loop shall maintain
a
uniform near-circular shape and ultimately
unfold
as a spiral, without any localized
deformation
that decreases the flow of
air
to less than 90 percent of the flow when
the
hose is tested while remaining in a
straight
line.
Hose
and couplings shall not exhibit any separation
or
failure when tested with a pull of 45
kg.
(100 pounds) for 5 minutes and when
tested
by subjecting them to an internal air
pressure
of 2 times the maximum respirator-
supply
pressure that is specified by the applicant
or
at 173 kN/m. 2 (25 pounds per square
inch)
gage, whichever is higher.
582
Public
Health Service, HHS 84.171
TABLE
8AIR-SUPPLY-LINE REQUIREMENTS AND TESTSContinued
[42
CFR part 84, subpart J]
Specific
requirements
Requirements
for the air-supply lines of the indicated type of supplied-air
respirators
Type
A Type B Type C
Tightness
.......................
Permeation
of hose by
gasoline.
Detachable
coupling ......
No
air leakage shall
occur
when the hose
and
couplings are
joined
and the joint(s)
are
immersed in
water
and subjected
to
an internal air
pressure
of 35 kN/m.
2
(5 pounds per
square
inch) gage.
The
permeation of the
hose
by gasoline will
be
tested by immersing
7.6
m. (25 feet) of
hose
and one coupling
in
gasoline, with
air
flowing through
the
hose at the rate
of
8 liters per minute
for
6 hours. The air
from
the hose shall
not
contain more than
0.01
percent by volume
of
gasoline
vapor
at the end of
the
test.
None
.............................
None
.............................
Same
as for Type A .....
None
.............................
Leakage
of air exceeding 50 cc. per minute at
each
coupling shall not be permitted when the
hose
and couplings are joined and are immersed
in
water, with air flowing through the
respirator
under a pressure of 173 kN/m. 2
(25
pounds per square inch) gage applied to
the
inlet end of the air-supply hose, or at
twice
the maximum respirator-supply pressure
that
is specified by the applicant, whichever is
higher.
Same
as for Type A, except the test period
shall
be 1 hour.
A
hand-operated detachable coupling by which
the
wearer can readily attach or detach the
connecting
hose shall be provided at a convenient
location.
This coupling shall be durable,
remain
connected under all conditions of
normal
respirator use, and meet the prescribed
tests
for strength and tightness of
hose
and couplings.
Subpart
KNon-Powered Air-
Purifying
Particulate Respirators
84.170
Non-powered air-purifying
particulate
respirators; description.
(a)
Non-powered air-purifying particulate
respirators
utilize the wearers
negative
inhalation pressure to draw
the
ambient air through the air-purifying
filter
elements (filters) to remove
particulates
from the ambient air.
They
are designed for use as respiratory
protection
against
atmospheres
with particulate contaminants
(e.g.,
dusts, fumes, mists) that
are
not immediately dangerous to life
or
health and that contain adequate
oxygen
to support life.
(b)
Non-powered air-purifying particulate
respirators
are classified into
three
series, N-, R-, and P-series. The
N-series
filters are restricted to use in
those
workplaces free of oil aerosols.
The
R- and P-series filters are intended
for
removal of any particulate that includes
oil-based
liquid particulates.
(c)
Non-powered air-purifying particulate
respirators
are classified according
to
the efficiency level of the filter(
s)
as tested according to the requirements
of
this part.
(1)
N100, R100, and P100 filters shall
demonstrate
a minimum efficiency
level
of 99.97 percent.
(2)
N99, R99, and P99 filters shall
demonstrate
a minimum efficiency
level
of 99 percent.
(3)
N95, R95, and P95 filters shall
demonstrate
a minimum efficiency
level
of 95 percent.
84.171
Non-powered air-purifying
particulate
respirators; required
components.
(a)
Each non-powered air-purifying
particulate
respirator described in
84.170
shall, where its design requires,
contain
the following component parts:
583
84.172
(1)
Facepiece, mouthpiece with nose-
clip,
hood, or helmet;
(2)
Filter unit;
(3)
Harness;
(4)
Attached blower; and
(5)
Breathing tube.
(b)
The components of each non-powered
air-purifying
particulate respirator
shall
meet the minimum construction
requirements
set forth in
subpart
G of this part.
84.172
Breathing tubes; minimum requirements.
Flexible
breathing tubes used in conjunction
with
respirators shall be designed
and
constructed to prevent:
(a)
Restriction of free head movement;
(b)
Disturbance of the fit of
facepieces,
mouthpieces, hoods, or helmets;
(c)
Interference with the wearers
activities;
and
(d)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.173
Harnesses; installation and
construction;
minimum requirements.
(a)
Each respirator shall, where necessary,
be
equipped with a suitable harness
designed
and constructed to hold
the
components of the respirator in position
against
the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of respirator parts,
and,
where applicable, provide for holding
a
full facepiece in the ready position
when
not in use.
84.174
Respirator containers; minimum
requirements.
(a)
Except as provided in paragraph
(b)
of this section each respirator shall
be
equipped with a substantial, durable
container
bearing markings which
show
the applicants
name, the type of
respirator
it contains, and all appropriate
approval
labels.
(b)
Containers for single-use respirators
may
provide for storage of
more
than one respirator, however,
such
containers shall be designed and
constructed
to prevent contamination
of
respirators which are not removed,
and
to prevent damage to respirators
during
transit.
42
CFR Ch. I (10110 Edition)
84.175
Half-mask facepieces, full
facepieces,
hoods, helmets, and
mouthpieces;
fit; minimum requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Full facepieces shall provide for
optional
use of corrective spectacles or
lenses,
which shall not reduce the respiratory
protective
qualities of the respirator.
(c)
Hoods and helmets shall be designed
and
constructed to fit persons
with
various head sizes, provide for the
optional
use of corrective spectacles or
lenses,
and insure against any restriction
of
movement by the wearer.
(d)
Mouthpieces shall be equipped
with
noseclips which are securely attached
to
the mouthpiece or respirator
and
provide an airtight seal.
(e)
Facepieces, hoods, and helmets
shall
be designed to prevent eyepiece
fogging.
(f)
Half-mask facepieces shall not
interfere
with the fit of common industrial
safety
corrective spectacles.
84.176
Facepieces, hoods, and helmets;
eyepieces;
minimum requirements.
Facepieces,
hoods, and helmets shall
be
designed and constructed to provide
adequate
vision which is not distorted
by
the eyepieces.
84.177
Inhalation and exhalation
valves;
minimum requirements.
(a)
Inhalation and exhalation valves
shall
be protected against distortion.
(b)
Inhalation valves shall be designed
and
constructed and provided
where
necessary to prevent excessive
exhaled
air from adversely affecting
filters,
except where filters are specifically
designed
to resist moisture.
(c)
Exhalation valves shall be:
(1)
Provided where necessary;
(2)
Protected against damage and external
influence;
and
584
Public
Health Service, HHS
(3)
Designed and constructed to prevent
inward
leakage of contaminated
air.
84.178
Head harnesses; minimum requirements.
(a)
All facepieces shall be equipped
with
head harnesses designed and constructed
to
provide adequate tension
during
use and an even distribution of
pressure
over the entire area in contact
with
the face.
(b)
Facepiece head harnesses, except
those
employed on single-use respirators,
shall
be adjustable and replaceable.
(c)
Mouthpieces shall be equipped,
where
applicable, with adjustable and
replaceable
harnesses, designed and
constructed
to hold the mouthpiece in
place.
84.179
Non-powered air-purifying
particulate
respirators; filter identification.
(a)
The respirator manufacturer, as
part
of the application for certification,
shall
specify the filter series
and
the filter efficiency level (i.e.,
N95,
R95,
P95,
N99,
R99,
P99,
N100,
R100,
or P100)
for
which
certification is being sought.
(b)
Filters shall be prominently labeled
as
follows:
(1)
N100 filters shall be labeled N100
Particulate
Filter (99.97% filter efficiency
level)
and shall be a color
other
than magenta.
(2)
R100 filters shall be labeled R100
Particulate
Filter (99.97% filter efficiency
level)
and shall be a color
other
than magenta.
(3)
P100 filters shall be labeled P100
Particulate
Filter (99.97% filter efficiency
level)
and shall be color coded
magenta.
(4)
N99 filters shall be labeled N99
Particulate
Filter (99% filter efficiency
level)
and shall be a color other than
magenta.
(5)
R99 filters shall be labeled R99
Particulate
Filter (99% filter efficiency
level)
and shall be a color other than
magenta.
(6)
P99 filters shall be labeled P99
Particulate
Filter (99% filter efficiency
level)
and shall be a color other than
magenta.
84.181
(7)
N95 filters shall be labeled as N95
Particulate
Filter (95% filter efficiency
level)
and shall be a color other than
magenta.
(8)
R95 filters shall be labeled as R95
Particulate
Filter (95% filter efficiency
level)
and shall be a color other than
magenta.
(9)
P95 filters shall be labeled as P95
Particulate
Filter (95% filter efficiency
level)
and shall be a color other than
magenta.
84.180
Airflow resistance tests.
(a)
Resistance to airflow will be
measured
in the facepiece, mouthpiece,
hood,
or helmet of a particulate respirator
(complete
respirator) mounted
on
a test fixture with air flowing at
continuous
rate of 85 2 liters per
minute,
before each test conducted in
accordance
with 84.182.
(b)
The resistances for particulate
respirators
upon initial inhalation
shall
not exceed 35 mm water column
height
pressure and upon initial exhalation
shall
not exceed 25 mm water
column
height pressure.
84.181
Non-powered air-purifyingparticulate filter efficiency level
determination.
(a)
Twenty filters of each non-powered
air-purifying
particulate respirator
model
shall be tested for filter
efficiency
against:
(1)
A solid sodium chloride particulate
aerosol
as per this section, if N-series
certification
is requested by the
applicant.
(2)
A dioctyl phthalate or equivalent
liquid
particulate aerosol as per this
section,
if R-series or P-series certification
is
requested by the applicant.
(b)
Filters including holders and gaskets;
when
separable, shall be tested
for
filter efficiency level, as mounted
on
a test fixture in the manner as used
on
the respirator.
(c)
Prior to filter efficiency testing of
20
N-series filters, the 20 to be tested
shall
be taken out of their packaging
and
placed in an environment of 85 5
percent
relative humidity at 38 2.5 C
for
25 1 hours. Following the pre-conditioning,
filters
shall be sealed in a
gas-tight
container and tested within
10
hours.
585
84.182
(d)
When the filters do not have separable
holders
and gaskets, the exhalation
valves
shall be blocked so as to ensure
that
leakage, if present, is not included
in
the filter efficiency level
evaluation.
(e)
For non-powered air-purifying
particulate
respirators with a single
filter,
filters shall be tested at a continuous
airflow
rate of 85 4 liters per
minute.
Where filters are to be used in
pairs,
the test-aerosol airflow rate
shall
be 42.5 2 liters per minute
through
each filter.
(f)
Filter efficiency test aerosols. (1)
When
testing N-series filters, a sodium
chloride
or equivalent solid aerosol at
25
5 C and relative humidity of 30 10
percent
that has been neutralized to
the
Boltzmann equilibrium state shall
be
used. Each filter shall be challenged
with
a concentration not exceeding 200
mg/m3.
(2)
When testing R-series and P-series
filters,
a neat cold-nebulized dioctyl
phthalate
(DOP) or equivalent aerosol
at
25 5 C that has been neutralized to
the
Boltzmann equilibrium state shall
be
used. Each filter shall be challenged
with
a concentration not exceeding 200
mg/m3.
(3)
The test shall continue until minimum
efficiency
is achieved or until an
aerosol
mass of at least 200 5 mg has
contacted
the filter. For P-series filters,
if
the filter efficiency is decreasing
when
the 200 5 mg challenge point
is
reached, the test shall be continued
until
there is no further decrease in efficiency.
(g)
The sodium chloride test aerosol
shall
have a particle size distribution
with
count median diameter of 0.075
0.020
micrometer and a standard geometric
deviation
not exceeding 1.86 at
the
specified test conditions as determined
with
a scanning mobility particle
sizer
or equivalent. The DOP aerosol
shall
have a particle size distribution
with
count median diameter of
0.185
0.020 micrometer and a standard
geometric
deviation not exceeding 1.60
at
the specified test conditions as determined
with
a scanning mobility particle
sizer
or equivalent.
(h)
The efficiency of the filter shall
be
monitored and recorded throughout
the
test period by a suitable forward-
42
CFR Ch. I (10110 Edition)
light-scattering
photometer or equivalent
instrumentation.
(i)
The minimum efficiency for each
of
the 20 filters shall be determined and
recorded
and be equal to or greater
than
the filter efficiency criterion listed
for
each level as follows:
P100,
R100 and N100: Efficiency =99.97%
P99,
R99 and N99: Efficiency =99%
P95,
R95 and N95: Efficiency =95%
84.182
Exhalation valve leakage test;
minimum
requirements.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. water-column height while in a
normal
operating position.
(b)
Leakage between the valve and
valve
seat shall not exceed 30 milliliters
per
minute.
Subpart
LChemical CartridgeRespirators
84.190
Chemical cartridge respirators:
description.
(a)
Chemical cartridge respirators including
all
completely assembled respirators
which
are designed for use as
respiratory
protection during entry
into
or escape from atmospheres not
immediately
dangerous to life and
health,
are described according to the
specific
gases or vapors against which
they
are designed to provide respiratory
protection,
as follows:
Maximum
use
con-
Type
of chemical cartridge respirator 1
centration,
parts
per
million
Ammonia
............................................................
300
Chlorine
.............................................................
10
Hydrogen
chloride .............................................
50
Methyl
amine .....................................................
100
Organic
vapor ....................................................
2
1,000
Sulfur
dioxide .....................................................
50
Vinyl
chloride .....................................................
10
1
Not for use against gases or vapors with poor warning
properties
(except where MSHA or Occupational Safety and
Health
Administration standards may permit such use for a
specific
gas or vapor) or those which generate high heats of
reaction
with sorbent material in the cartridge.
2
Maximum use concentrations are lower for organic vapors
which
produce atmospheres immediately hazardous to life or
health
at concentrations equal to or lower than this
concentration.
(b)
Chemical cartridge respirators for
respiratory
protection against gases or
vapors,
which are not specifically listed
with
their maximum use concentration,
may
be approved if the applicant
586
Public
Health Service, HHS
submits
a request for such approval, in
writing,
to the Institute. The Institute
shall
consider each such application
and
accept or reject the application
after
a review of the effects on the
wearers
health and safety and in the
light
of any field experience in use of
chemical
cartridge respirators as protection
against
such hazards.
84.191
Chemical cartridge respirators;
required
components.
(a)
Each chemical cartridge respirator
described
in 84.190 shall, where
its
design requires, contain the following
component
parts:
(1)
Facepiece, mouthpiece, and nose-
clip,
hood, or helmet;
(2)
Cartridge;
(3)
Cartridge with filter;
(4)
Harness;
(5)
Breathing tube; and
(6)
Attached blower.
(b)
The components of each chemical
cartridge
respirator shall meet the
minimum
construction requirements
set
forth in subpart G of this part.
84.192
Cartridges in parallel; resistance
requirements.
Where
two or more cartridges are
used
in parallel, their resistance to airflow
shall
be essentially equal.
84.193
Cartridges; color and markings;
requirements.
The
color and markings of all cartridges
or
labels shall conform with the
requirements
of the American National
Standards
Institute, American National
Standard
for Identification of
Air-Purifying
Respirator Canisters and
Cartridges,
ANSI K13.11973. ANSI
K13.1
is incorporated by reference and
has
been approved by the Director of
the
Federal Register in accordance
with
5 U.S.C. 552(a) and 1 CFR part 51.
Copies
may be obtained from American
National
Standards Institute, Inc., 1430
Broadway,
New York, NY 10018. Copies
may
be inspected at the NIOSH, Certification
and
Quality Assurance
Branch,
1095 Willowdale Road, Morgan-
town,
WV 265052888, or at the National
Archives
and Records Administration
(NARA).
For information on the availability
of
this material at NARA, call
2027416030,
or go to: http://
www.archives.gov/federallregister/
84.197
codeloflfederallregulations/
ibrllocations.html.
84.194
Filters used with chemical
cartridges;
location; replacement.
(a)
Particulate matter filters used in
conjunction
with a chemical cartridge
shall
be located on the inlet side of the
cartridge.
(b)
Filters shall be incorporated in or
firmly
attached to the cartridge and
each
filter assembly shall, where applicable,
be
designed to permit its easy removal
from
and replacement on the
cartridge.
84.195
Breathing tubes; minimum requirements.
Flexible
breathing tubes used in conjunction
with
respirators shall be designed
and
constructed to prevent:
(a)
Restriction of free head movement;
(b)
Disturbance of the fit of
facepieces,
mouthpieces, hoods, or helmets;
(c)
Interference with the wearers
activities;
and
(d)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.196
Harnesses; installation and
construction;
minimum require
ments.
(a)
Each respirator shall, where necessary,
be
equipped with a suitable harness
designed
and constructed to hold
the
components of the respirator in position
against
the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of respirator parts
and,
where applicable, provide for holding
a
full facepiece in the ready position
when
not in use.
84.197
Respirator containers; minimum
requirements.
Respirators
shall be equipped with a
substantial,
durable container bearing
markings
which show the applicants
name,
the type and commercial designation
of
the respirator it contains
and
all appropriate approval labels.
587
84.198
84.198
Half-mask facepieces, full
facepieces,
mouthpieces, hoods, and
helmets;
fit; minimum requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Hoods and helmets shall be designed
and
constructed to fit persons
with
various head sizes, provide for the
optional
use of corrective spectacles or
lenses,
and insure against any restriction
of
movement by the wearer.
(c)
Mouthpieces shall be equipped
with
noseclips which are securely attached
to
the mouthpiece or respirator
and
provide an airtight fit.
(d)
Full facepieces shall provide for
optional
use of corrective spectacles or
lenses
which shall not reduce the respiratory
protective
qualities of the respirator.
(e)
Facepieces, hoods, and helmets
shall
be designed to prevent eyepiece
fogging.
84.199
Facepieces, hoods, and helmets;
eyepieces;
minimum requirements.
Facepieces,
hoods, and helmets shall
be
designed and constructed to provide
adequate
vision which is not distorted
by
the eyepieces.
84.200
Inhalation and exhalation
valves;
minimum requirements.
(a)
Inhalation and exhalation valves
shall
be provided where necessary and
protected
against distortion.
(b)
Inhalation valves shall be designed
and
constructed to prevent excessive
exhaled
air from entering cartridges
or
adversely affecting canisters.
(c)
Exhalation valves shall be
42
CFR Ch. I (10110 Edition)
(1)
Protected against damage and external
influence;
and
(2)
Designed and constructed to prevent
inward
leakage of contaminated
air.
84.201
Head harnesses; minimum requirements.
(a)(1)
Facepieces for chemical cartridge
respirators
other than single-use
vinyl
chloride shall be equipped with
adjustable
and replaceable head harnesses
designed
and constructed to provide
adequate
tension during use and
an
even distribution of pressure over
the
entire area in contact with the
face.
(2)
Facepieces for single-use vinyl
chloride
respirators shall be equipped
with
adjustable head harnesses designed
and
constructed to provide adequate
tension
during use and an even
distribution
of pressure over the entire
area
in contact with the face.
(b)
Mouthpieces shall be equipped
where
applicable, with an adjustable
and
replaceable harness designed and
constructed
to hold the mouthpiece in
place.
84.202
Air velocity and noise levels;
hoods
and helmets; minimum re
quirements.
Noise
levels generated by the respirator
will
be measured inside the
hood
or helmet at maximum airflow
obtainable
and shall not exceed 80 dBA.
84.203
Breathing resistance test; minimum
requirements.
(a)
Resistance to airflow will be
measured
in the facepiece, mouthpiece,
hood,
or helmet of a chemical cartridge
respirator
mounted on a test fixture
with
air flowing at a continuous rate of
85
liters per minute, both before and
after
each test conducted in accordance
with
84.206 through 84.207.
(b)
The maximum allowable resistance
requirements
for chemical cartridge
respirators
are as follows:
MAXIMUM
RESISTANCE
[Millimeter
water column height]
Type
of chemical-cartridge respirator
Inhalation
Exhalation
Initial
Final 1
Other
than single-use vinyl chloride respirators:
For
gases, vapors, or gases and vapors
........................................................ 40 45 20
588
Public
Health Service, HHS 84.207
MAXIMUM
RESISTANCEContinued
[Millimeter
water column height]
Type
of chemical-cartridge respirator
Inhalation
Exhalation
Initial
Final 1
For
gases, vapors, or gases and vapors, and particulates
............................
Single-use
respirator with valves:
For
vinyl chloride
.............................................................................................
For
vinyl chloride and particulates
..................................................................
Single-use
respirator without valves:
For
vinyl chloride
.............................................................................................
For
vinyl chloride and particulates
..................................................................
50
20
30
15
25
70
25
45
20
40
20
20
2
(2)
(2)
1
Measured at end of service life specified in Table 11 of this
subpart.
2
Same as inhalation.
84.204
Exhalation valve leakage test;
minimum
requirements.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. water-column height while in a
normal
operating position.
(b)
Leakage between the valve and
valve
seat shall not exceed 30 milliliters
per
minute.
84.205
Facepiece test; minimum requirements.
(a)
The complete chemical cartridge
respirator
will be fitted to the faces of
persons
having varying facial shapes
and
sizes.
(b)
Where the applicant specifies a
facepiece
size or sizes for the respirator
together
with the approximate measurement
of
faces they are designed to
fit,
the Institute will provide test subjects
to
suit such facial measurements.
(c)
Any chemical cartridge respirator
part
which must be removed to perform
the
facepiece or mouthpiece fit test
shall
be replaceable without special
tools
and without disturbing facepiece
or
mouthpiece fit.
(d)
The facepiece or mouthpiece fit
test
using the positive or negative
pressure
recommended by the applicant
and
described in his instructions will
be
used before each test.
(e)(1)
Each wearer will enter a chamber
containing
100 p.p.m. isoamyl acetate
vapor
for half-mask facepieces,
and
1,000 p.p.m. for full facepieces,
mouthpieces,
hoods, and helmets.
(2)
The facepiece or mouthpiece may
be
adjusted, if necessary, in the test
chamber
before starting the test.
(3)
Each wearer will remain in the
chamber
for 8 minutes while performing
the
following activities:
(i)
Two minutes, nodding and turning
head;
(ii)
Two minutes, calisthenic arm
movements;
(iii)
Two minutes, running in place;
and
(iv)
Two minutes, pumping with a
tire
pump into a 28-liter (1 cubic-foot)
container.
(4)
Each wearer shall not detect the
odor
of isoamyl-acetate vapor during
the
test.
84.206
Particulate tests; respirators
with
filters; minimum requirements;
general.
(a)
Three respirators with cartridges
containing,
or having attached to
them,
filters for protection against
particulates
will be tested in accordance
with
the provisions of 84.207.
(b)
In addition to the test requirements
set
forth in paragraph (a) of this
section,
three such respirators will be
tested,
as appropriate, in accordance
with
the provisions of 84.179 through
84.183;
however, the maximum allowable
resistance
of complete particulate,
and
gas, vapor, or gas and vapor chemical
cartridge
respirators shall not exceed
the
maximum allowable limits set
forth
in 84.203.
84.207
Bench tests; gas and vapor
tests;
minimum requirements; general.
(a)
Bench tests will be made on an
apparatus
that allows the test atmosphere
at
50 5 percent relative humidity
and
room temperature, approximately
25
C, to enter the cartridges
continuously
at predetermined concentrations
and
rates of flow, and that
589
Pt.
84, Subpt. L, Tables
has
means for determining the test life
of
the cartridges.
(b)
Where two cartridges are used in
parallel
on a chemical cartridge respirator,
the
bench test will be performed
with
the cartridges arranged in
parallel,
and the test requirements will
apply
to the combination rather than
to
the individual cartridges.
(c)
Three cartridges or pairs of cartridges
will
be removed from containers
and
tested as received from the
applicant.
(d)
Two air purifying cartridges or
pairs
of cartridges will be equilibrated
at
room temperature by passing 25 per42
CFR
Ch. I (10110 Edition)
cent
relative humidity air through
them
at the flow rate of 25 liters per
minute
(l.p.m.) for 6 hours.
(e)
Two air purifying cartridges or
pairs
of cartridges will be equilibrated
by
passing 85 percent relative humidity
air
through them at the flow rate of 25
l.p.m.
(f)
All cartridges will be resealed,
kept
in an upright position, at room
temperatures,
and tested within 18
hours.
(g)
Cartridges will be tested and shall
meet
the minimum requirements set
forth
in Table 11 of this subpart.
TABLES
TO SUBPART L OF PART 84
TABLES
910 [RESERVED]
TABLE
11CARTRIDGE BENCH TESTS AND REQUIREMENTS
[42
CFR part 84, subpart L]
Cartridge
Test condition
Test
atmosphere
Flowrate
(l.p.m.)
Number
of
tests
Penetration
1
(p.p.m.)
Minimum
life
2 (min.)Gas or vapor Concentration
(p.p.m.)
Ammonia
........... As received ....... NH3 1000 64 3 50 50
Ammonia
........... Equilibrated ....... NH3 1000 32 4 50 50
Chlorine
............. As received ....... Cl2 500 64 3 5 35
Chlorine
............. Equilibrated ....... Cl2 500 32 4 5 35
Hydrogen
chlo-As received ....... HCl 500 64 3 5 50
ride.
Hydrogen
chlo-Equilibrated ....... HCl 500 32 4 5 50
ride.
Methylamine
...... As received ....... CH3 NH2 1000 64 3 10 25
Methylamine
...... Equilibrated ....... CH3 NH2 1000 32 4 10 25
Organic
vapors .. As received ....... CCl4 1000 64 3 5 50
Organic
vapors .. Equilibrated ....... CCl4 1000 32 4 5 50
Sulfur
dioxide ..... As received ....... SO2 500 64 3 5 30
Sulfur
dioxide ..... Equilibrated ....... SO2 500 32 4 5 30
1
Minimum life will be determined at the indicated penetration.
2
Where a respirator is designed for respiratory protection against
more than one type of gas or vapor, as for use in ammonia
and
in chlorine, the minimum life shall be one-half that shown for each
type of gas or vapor. Where a respirator is designed for
respiratory
protection against more than one gas of a type, as for use in
chlorine and sulfur dioxide, the stated minimal life shall
apply.
Subpart
M [Reserved]
Subpart
NSpecial Use
Respirators
84.250
Vinyl chloride respirators; description.
Vinyl
chloride respirators, including
all
completely assembled respirators
which
are designed for use as respiratory
protection
during entry into
and
escape from vinyl chloride
atmospheres
containing adequate oxygen
to
support life, are described ac
cording
to their construction as follows:
(a)
Front-mounted or back-mounted
gas
masks;
(b)
Chin-style gas masks;
(c)
Chemical-cartridge respirators;
(d)
Powered air-purifying respirators;
and
(e)
Other devices, including combination
respirators.
590
Public
Health Service, HHS
84.251
Required components.
(a)
Each vinyl chloride respirator described
in
84.250 shall, where its design
requires,
contain the following
component
parts:
(1)
Facepiece;
(2)
Canister with end-of-service-life
indicator;
(3)
Cartridge with end-of-service-life
indicator;
(4)
Harness;
(5)
Attached blower; and
(6)
Breathing tube.
(b)
The components of each vinyl
chloride
respirator shall meet the minimum
construction
requirements set
forth
in Subpart G of this part.
84.252
Gas masks; requirements and
tests.
(a)
Except for the tests prescribed in
84.126,
the minimum requirements and
performance
tests for gas masks, prescribed
in
Subpart I of this part, are
applicable
to vinyl chloride gas masks.
(b)
The following bench tests are applicable
to
canisters designed for use
with
gas masks for entry into and escape
from
vinyl chloride atmospheres
containing
adequate oxygen to support
life:
(1)
Four canisters will be equilibrated
at
25 5 C by passing 85 5 percent relative
humidity
air through them at 64
liters
per minute for six hours.
(2)
The equilibrated canisters will be
resealed,
kept in an upright position at
room
temperature, and tested according
to
paragraph (b)(3) of this section
within
18 hours.
(3)
The canisters equilibrated and
stored
as described in paragraphs (b) (1)
and
(2) of this section will be tested on
an
apparatus that allows the test atmosphere
at
85 5 percent relative humidity
and
25 5 C to enter the canister
continuously
at a concentration
of
25 ppm vinyl chloride monomer at a
total
flow rate of 64 liters per minute.
(4)
The maximum allowable penetration
after
six hours of testing according
to
paragraph (b)(3) of this section
shall
not exceed 1 ppm vinyl chloride.
(c)
Where canisters are submitted for
testing
and approval with a service life
of
more than four hours, the period of
time
for testing for vinyl chloride penetration
will
be performed at 150% of
the
service life specified in the manu
84.253
facturers
application. (Example: If a
manufacturer
requests approval of a
respirator
for six hours use against exposure
to
vinyl chloride, the maximum
allowable
penetration after nine hours
of
testing shall not exceed 1 ppm vinyl
chloride.)
84.253
Chemical-cartridge respirators;
requirements
and tests.
(a)
Except for the tests prescribed in
84.206
and 84.207, the minimum requirements
and
performance tests for
chemical-cartridge
respirators prescribed
in
Subpart L of this part are
applicable
to replaceable-cartridge and
single-use
vinyl chloride chemical-cartridge
respirators.
(b)
The following bench tests are applicable
to
cartridges designed for use
with
chemical-cartridge respirators for
entry
into and escape from vinyl chloride
atmospheres
containing adequate
oxygen
to support life:
(1)
Where two cartridges are used in
parallel
on a chemical-cartridge respirator,
the
bench test requirements
will
apply to the combination rather
than
the individual cartridges.
(2)
Four cartridges or pairs of cartridges
will
be equilibrated at 25 5 C
by
passing 85 5 percent relative humidity
air
through them at 25 liters
per
minute for six hours.
(3)
The equilibrated cartridges will be
resealed,
kept in an upright position,
at
room temperature, and tested according
to
paragraphs (b)(4) and (b)(5)
of
this section for other than single-use
respirators
or according to paragraphs
(b)(6)
and (b)(7) of this section for sin-
gle-use
respirators within 18 hours.
(4)
The cartridges or pairs of cartridges
for
other than single-use respirators,
equilibrated
and stored as described
in
paragraphs (b)(1), (b)(2), and
(b)(3)
of this section, will be tested on
an
apparatus that allows the test atmosphere
at
85 5 percent relative humidity
and
25 5 C, to enter the cartridges
or
pairs of cartridges continuously
at
a concentration of 10 ppm
vinyl
chloride monomer at a total
flowrate
of 64 liters per minute.
(5)
The maximum allowable penetration
after
90 minutes testing of cartridges
or
pairs of cartridges for other
than
single-use respirators, according
591
84.254
to
paragraph (b)(4) of this section shall
not
exceed 1 ppm vinyl chloride.
(6)
The single-use respirators, equilibrated
and
stored as described in paragraphs
(b)(2)
and (b)(3) of this section,
will
be tested on an apparatus that allows
a
test atmosphere at 85 5 percent
relative
humidity and 25 5 C to be cycled
through
the respirator by a
breathing
machine at a concentration
of
10 ppm vinyl chloride monomer at
the
rate of 24 respirations per minute
at
a minute volume of 40 0.6 liters. Air
exhaled
through the respirator will be
35
2 C with 94 3 percent relative humidity.
(7)
The maximum allowable penetration
after
144 minutes testing of respirators,
according
to paragraph (b)(6)
of
this section, shall not exceed 1 ppm
vinyl
chloride.
84.254
Powered air-purifying respirators;
requirements
and tests.
(a)
Except for the tests prescribed in
84.207,
the minimum requirements and
performance
tests for powered air-purifying
respirators
prescribed in subpart
L
of this part are applicable to vinyl
chloride
powered air-purifying respirators.
(b)
The following bench tests are applicable
to
cartridges designed for use
with
powered air-purifying respirators
for
entry into and escape from vinyl
chloride
atmospheres containing adequate
oxygen
to support life:
(1)
Four cartridges will be equilibrated
at
25 C by passing 85 5 percent
relative
humidity air through
them
at 115 liters per minute for tight-
fitting
facepieces and 170 liters per
minute
for loose-fitting hoods and helmets,
for
six hours.
(2)
The equilibrated cartridges will be
resealed,
kept in an upright position at
room
temperature and tested according
to
paragraph (b)(3) of this section within
18
hours.
(3)
The cartridges equilibrated and
stored
as described in paragraphs (b) (1)
and
(2) of this section will be tested on
an
apparatus that allows the test atmosphere
at
85 5 percent relative humidity
and
25 5 C to enter the cartridge
continuously
at a concentration
of
25 ppm vinyl chloride monomer at a
total
flow rate of 115 liters per minute
for
tight-fitting facepieces and 170 li42
CFR
Ch. I (10110 Edition)
ters
per minute for loose-fitting hoods
and
helmets.
(4)
The maximum allowable penetration
after
six hours of testing according
to
paragraph (b)(3) of this section
shall
not exceed 1 ppm vinyl chloride.
84.255
Requirements for end-of-service-
life
indicator.
(a)
Each canister or cartridge submitted
for
testing and approval in accordance
with
84.252, 84.253, and 84.254
shall
be equipped with a canister or
cartridge
end-of-service-life indicator
which
shows a satisfactory indicator
change
or other obvious warning before
1
ppm vinyl chloride penetration occurs.
The
indicator shall show such
change
or afford such warning at 80 10
percent
of the total service life to 1
ppm
leakage, as determined by continuing
each
test described in
84.252(b),
84.253(b), and 84.254(b) until
a
1 ppm leakage of vinyl chloride occurs.
(b)
The applicant shall provide sufficient
pretest
data to verify the performance
of
the end-of-service-life indicator
required
in paragraph (a) of this
section.
84.256
Quality control requirements.
(a)
In addition to the construction
and
performance requirements specified
in
84.251, 84.252, 84.253, 84.254, and
84.255,
the quality control requirements
in
paragraphs (b), (c), and (d) of this
section
apply to approval of gas masks,
chemical
cartridge respirators, and
powered
air-purifying respirators for
entry
into and escape from vinyl chloride
atmospheres
containing adequate
oxygen
to support life.
(b)
The respirators submitted for approval
as
described in paragraph (a) of
this
section shall be accompanied by a
complete
quality control plan meeting
the
requirements of subpart E of this
part.
(c)(1)
The applicant shall specify in
the
plan that a sufficient number of
samples
will be drawn from each bulk
container
of sorbent material and that
where
activated carbon is used, the following
specific
tests will be performed:
(i)
Apparent density;
(ii)
Iodine number;
(iii)
Moisture content;
592
Public
Health Service, HHS
(iv)
Carbon tetrachloride number;
and
(v)
Mesh size.
(2)
The tests in paragraph (c)(1) of
this
section shall be performed in a
quantity
necessary to assure continued
satisfactory
conformance of the canisters
and
cartridges to the requirements
of
this subpart.
(d)
Final performance quality control
tests
on the complete canisters and
cartridges
shall be accomplished using
the
bench tests and procedures prescribed
in
84.252, 84.253, 84.254, and
84.255.
84.257
Labeling requirements.
(a)
A warning shall be placed on the
label
of each gas mask, chemical-cartridge
respirator,
and powered air-purifying
respirator,
and on the label of
each
canister and cartridge, alerting
the
wearer to the need for a fitting test
in
accordance with the manufacturers
facepiece
fitting instructions, providing
service
life information, providing
specific
instructions for disposal,
and
advising that the wearer
may
communicate to NIOSH any difficulties
that
may be experienced in
the
design and performance of any gas
mask,
chemical-cartridge respirator, or
powered
air-purifying respirator approved
under
the requirements of this
subpart.
The service lives of respirators
meeting
the test requirements of this
subpart
shall be specified as follows:
Chemical-cartridge
respirator .............1 hour.
Gas
mask............................................4 hours.
Powered
air-purifying respirator .......4 hours.
(b)
Where the service life of a respirator
is
approved for more than four
hours,
the service life for which the
respirator
has been approved will be
specified.
84.258
Fees.
The
following fees shall be charged
for
the examination, inspection, and
testing
of complete assemblies and
components
of respirators described in
84.250
and 84.251:
Complete
gas mask ................................$1,100
Complete
chemical-cartridge res
pirator..............................................
1,150
Complete
powered air-purifying res
pirator..............................................
1,500
Canister
or cartridge only ...................... 750
84.1100
Subparts
OJJ [Reserved]
Subpart
KKDust, Fume, and Mist;
Pesticide;
Paint Spray; Powered
Air-Purifying
High Efficiency
Respirators
and Combination
Gas
Masks
84.1100
Scope and effective dates.
The
purpose of this subpart KK is to
establish
procedures and requirements
for
issuing extensions of approval of
particulate
respirators certified prior
to
July 10, 1995 under the provisions of
30
CFR part 11 (See 30 CFR part 11 edition,
as
revised July 1, 1994.), new approvals
and
extensions of approval of
particulate
respirators for applications
that
are in NIOSH receipt on July 10,
1995,
and approval of powered air-purifying
respirators.
(a)
Air-purifying respirators with
particulate
filters approved under the
provisions
of this subpart after July 10,
1995
will have a 30 CFR part 11 approval
label.
(b)
Only changes or modifications of
non-powered
air-purifying respirators
with
particulate filters approved under
the
provisions of subparts I, K, L, or M
of
30 CFR part 11 or paragraph (a) of
this
section and deemed necessary by
NIOSH
to ensure the health and safety
of
the wearer will be approved until
July
10, 1998 and will have a 30 CFR
part
11 approval label.
(c)
Only changes or modifications of
powered
air-purifying respirators with
particulate
filters approved under the
provisions
of subparts I, K, L, or M of
30
CFR part 11 or paragraph (a) of this
section
and deemed necessary by
NIOSH
to ensure the health and safety
of
the wearer will be approved under
this
subpart until July 10, 1998 and will
have
a 30 CFR part 11 label.
(d)
Approval of powered air-purifying
respirators
will be issued under this
subpart.
Particulate filters for powered
air-purifying
respirators approved
under
the provisions of this subpart
shall
be only high-efficiency (HEPA) as
described
in 84.1130(a)(4) and will
carry
a 42 CFR part 84 approval label.
In
addition, changes or modifications
of
powered HEPA air-purifying respirators
approved
under the provisions
of
this subpart KK will be approved
593
84.1101
under
this subpart and will have a 42
CFR
part 84 approval label.
84.1101
Definitions.
As
used in this subpart
(a)
Air Contamination Level means the
standards
of contaminant levels prescribed
by
the Secretary of Labor in
accordance
with the provisions of the
Occupational
Safety and Health Act of
1970
(Pub. L. 91596; 84 Stat. 1590).
(b)
DOP means a homogenous liquid
aerosol,
having a particle diameter of
0.3
micrometer, which is generated by
vaporization
and condensation of
dioctyl
phthalate.
(c)
Pesticide means:
(1)
Any substance or mixture of substances
(including
solvents and impurities)
intended
to prevent, destroy,
repel,
or mitigate any insect, rodent,
nematode,
fungus, weed, or other form
of
plant or animal life or virus; and
(2)
Any substance or mixture of substances
(including
solvents and impurities)
intended
for use as a plant regulator,
defoliant,
or desiccant, as defined
in
the Federal Insecticide, Fungicide,
and
Rodenticide Act of 1947, as
amended
(7 U.S.C. 135135k), excluding
fumigants
which are applied as gases or
vapors
or in a solid or liquid form as
pellets
or poured liquids for subsequent
release
as gases or vapors.
(d)
Radionuclide means an atom identified
by
the constitution of its nucleus
(specified
by the number of protons Z,
number
of neutrons N, and energy, or,
alternatively,
by the atomic number Z,
mass
number A=(N+Z), and atomic
mass)
which exists for a measurable
time;
decays or disintegrates spontaneously,
emits
radiation, and results in
the
formation of new nuclides.
(e)
Smoke means the products of incomplete
combustion
of organic substances
in
the form of solid and liquid
particles
and gaseous products in air,
usually
of sufficient concentration to
perceptibility
obscure vision.
84.1102
Examination, inspection and
testing
of complete respirator assemblies;
fees.
The
following fees shall be charged
by
the Institute for the examination,
inspection
and testing of complete respirator
assemblies
approved under this
subpart:
42
CFR Ch. I (10110 Edition)
(a)
Gas masks with particulate filter,
including
pesticide gas masks
(1)
Single hazard$1,100.
(2)
Type N$4,100.
(b)
Dust, fume and mist respirators
(1)
Single particulate hazard having
an
Air Contamination Level more than
0.05
mg./m.3 or 2 million particles per
cubic
foot$500.
(2)
Combination particulate hazards
having
an Air Contamination Level
more
than 0.05 mg./m.3 or 2 million particles
per
cubic foot$750.
(3)
Particulate hazards having an Air
Contamination
Level less than 0.05
mg./m.3
or 2 million particles per cubic
foot,
radon daughters$1,250.
(4)
All dusts, fumes and mists$2,000.
(c)
Paint spray respirators$1,600.
(d)
Pesticide respirators$1,600.
(e)
Chemical cartridge respirators
with
particulate filter$1,150.
84.1103
Approval labels and markings;
approval
of contents; use.
(a)
Full-scale reproductions of approval
labels
and markings, and a
sketch
or description of the method of
application
and position on the harness,
container,
canister, cartridge, filter,
or
other component, together with
instructions
for the use and maintenance
of
the respirator shall be submitted
to
MSHA and the Institute for
approval.
(b)
Approval labels for non-powered
and
powered air-purifying dust, fume,
mist
respirators approved prior to July
10,
1995 under the provisions of subpart
K
of 30 CFR part 11 (See 30 CFR Part 11
edition,
revised as of July 1, 1994.) shall
bear
the emblem of the Mine Safety
and
Health Administration and the
seal
of the Department of Health and
Human
Services, the applicants
name
and
address, an approval number assigned
by
the Institute, a statement
that
the respirator was tested and approved
under
subpart K of 30 CFR part
11
and, where appropriate, restrictions
or
limitations placed upon the use of
the
respirator by the Institute. The approval
number
assigned by the Institute
shall
be designated by the prefix
TC
and a serial number.
(c)
Approval labels for powered air-
purifying
respirators approved under
the
provisions of this subpart shall
594
Public
Health Service, HHS
bear
the emblem of the National Institute
for
Occupational Safety and
Health
and the seal of the Department
of
Health and Human Services, the applicants
name
and address, an approval
number
assigned by the Institute,
a
statement stating the respirator
was
tested under the provisions
of
this subpart, and, where appropriate,
restrictions
or limitations placed upon
the
use of the respirator by the Institute.
The
approval number assigned by
the
Institute shall be designated by the
prefix
TC and a serial number.
84.1130
(c)
The Institute shall, where necessary,
notify
the applicant when additional
labels,
markings, or instructions
will
be required.
(d)
Approval labels and markings
shall
only be used by the applicant to
whom
they were issued.
(e)
Legible reproductions or abbreviated
forms
of the label approved by
the
Institute for use on each respirator
shall
be attached to or printed at the
following
locations:
Respirator
type Label type Location
Gas
mask with a particulate filter, including pesticide
gas
mask.
Dust,
fume, and mist respirators ............................
Chemical-cartridge
respirator with a particulate filter,
including
paint spray respirator.
Pesticide
respirator .................................................
Entire
.............................
Entire
.............................
Abbreviated
...................
Entire
.............................
Abbreviated
...................
Entire
.............................
Abbreviated
...................
Mask
and container.
Respirator
container and filter container.
Filters.
Respirator
container, cartridge container, and filter
containers
(where applicable).
Cartridges
and filters and filter containers.
Respirator
container, and cartridge and filter containers.
Cartridges
and filters.
(f)
The use of any MSHA and Institute
approval
label obligates the applicant
to
whom it is issued to maintain
or
cause to be maintained the approved
quality
control sampling schedule and
the
acceptable quality level for each
characteristic
tested, and to assure
that
it is manufactured according to
the
drawings and specifications upon
which
the certificate of approval is
based.
(g)
Each respirator, respirator component,
and
respirator container shall,
as
required by the Institute to assure
quality
control and proper use of the
respirator,
be labeled distinctly to
show
the name of the applicant, and
the
name and letters or numbers by
which
the respirator or respirator component
is
designated for trade purposes,
and
the lot number, serial number,
or
approximate date of manufacture.
EDITORIAL
NOTE: At 60 FR 30388, June 8,
1995,
84.1103 was added with two paragraph
(c)
designations.
84.1130
Respirators; description.
(a)
Dust, fume, and mist respirators,
including
all completely assembled respirators
designed
for use as respiratory
protection
during entry into and escape
from
atmospheres which contain
adequate
oxygen to support life and
hazardous
particulates, are described
as
follows:
(1)
Air-purifying respirators, either
with
replaceable or reusable filters, designed
as
respiratory protection
against
dusts:
(i)
Having an air contamination level
not
less than 0.05 milligram per cubic
meter
of air, including but not limited
to
coal, arsenic, cadmium, chromium,
lead,
and manganese; or
(ii)
Having an air contamination
level
not less than 2 million particles
per
cubic foot of air, including but not
limited
to aluminum, flour, iron ore,
and
free silica, resulting principally
from
the disintegration of a solid, e.g.,
dust
clouds produced in mining, quarrying,
and
tunneling, and in dusts produced
during
industrial operations,
such
as grinding, crushing, and the
general
processing of minerals and
other
materials.
(2)
Air-purifying respirators, with replaceable
filters,
designed as respiratory
protection
against fumes of
various
metals having an air contamination
level
not less than 0.05 milligram
per
cubic meter, including but
not
limited to aluminum, antimony,
arsenic,
cadmium, chromium, copper,
595
84.1131
iron,
lead, magnesium, manganese,
mercury
(except mercury vapor), and
zinc,
which result from the sublimation
or
condensation of their respective vapors,
or
from the chemical reaction between
their
respective vapors and
gases.
(3)
Air-purifying respirators, with replaceable
filters,
designed as respiratory
protection
against mists of
materials
having an air contamination
level
not less than 0.05 milligram per
cubic
meter or 2 million particles per
cubic
foot, e.g., mists produced by
spray
coating with vitreous enamels,
chromic
acid mist produced during
chromium
plating, and other mists of
materials
whose liquid vehicle does not
produce
harmful gases or vapors.
(4)
Air-purifying respirators, with replaceable
filters,
designed as respiratory
protection
against dusts,
fumes,
and mists having an air contamination
level
less than 0.05 milligram
per
cubic meter, including but
not
limited to lithium hydride and beryllium,
and
against radionuclides.
(5)
Air-purifying respirators, with replaceable
filters,
designed as respiratory
protection
against radon
daughters,
and radon daughters attached
to
dusts, fumes, and mists.
(6)
Air-purifying respirators, with replaceable
filters,
designed as respiratory
protection
against asbestos-
containing
dusts and mists.
(7)
Air-purifying respirators, with replaceable
filters,
designed as protection
against
various combinations of
particulate
matter.
(8)
Air-purifying dust respirators designed
as
respiratory protection
against
pneumoconiosis- and fibrosis-
producing
dusts, or dusts and mists, including
but
not limited to aluminum,
asbestos,
coal, flour, iron ore, and free
silica.
(b)
Gas masks containing filters for
protection
against dusts, fumes, mists,
and
smokes in combination with gases,
vapors,
or gases and vapors. These respirators
are
not for use against gases
or
vapors with poor warning properties
(except
where MSHA or Occupational
Safety
and Health Administration
standards
may permit such use for a
specific
gas or vapor) or those which
generate
high heats of reaction with
sorbent
material in the canister.
42
CFR Ch. I (10110 Edition)
(c)
Pesticide respirators, including
all
completely assembled respirators
which
are designed for use as respiratory
protection
during entry into
and
escape from atmospheres which
contain
pesticide hazards, are described
according
to their construction
as
follows:
(1)
Front-mounted or back-mounted
gas
masks;
(2)
Chin-style gas mask;
(3)
Chemical cartridge;
(4)
Air-purifying respirator with attached
blower;
and,
(5)
Other devices, including combination
respirators.
(d)
Respirators with cartridges containing
or
having attached to them, filters
for
protection against mists of
paints,
lacquers, and enamels. These
respirators
are not for use against
gases
or vapors with poor warning
properties
(except where MSHA or Occupational
Safety
and Health Administration
standards
may permit such use
for
a specific gas or vapor) or those
which
generate high heats of reaction
with
sorbent material in the cartridge.
(e)
Respirators with cartridges containing
or
having attached to them filters
for
protection against dusts,
fumes,
and mists, except the mists of
paints,
lacquers, and enamels. These
respirators
are not for use against
gases
or vapors with poor warning
properties
(except where MSHA or Occupational
Safety
and Health Administration
standards
may permit such use
for
a specific gas or vapor) or those
which
generate high heats of reaction
with
sorbent material in the cartridge.
84.1131
Respirators; required components.
(a)
Each respirator described in
84.1130
shall, where its design requires,
contain
the following component
parts:
(1)
Facepiece, mouthpiece with nose-
clip,
hood, or helmet;
(2)
Filter unit, canister with filter, or
cartridge
with filter;
(3)
Harness;
(4)
Attached blower; and
(5)
Breathing tube.
(b)
The components of each respirator
shall
meet the minimum construction
requirements
set forth in
Subpart
G of this part.
596
Public
Health Service, HHS
84.1132
Breathing tubes; minimum
requirements.
(a)
Flexible breathing tubes used in
conjunction
with respirators shall be
designed
and constructed to prevent:
(1)
Restriction of free head movement;
(2)
Disturbance of the fit of
facepieces,
mouthpieces, hoods, or helmets;
(3)
Interference with the wearers
activities;
and
(4)
Shutoff of airflow due to kinking,
or
from chin or arm pressure.
84.1133
Harnesses; installation and
construction;
minimum requirements.
(a)
Each respirator shall, where necessary,
be
equipped with a suitable harness
designed
and constructed to hold
the
components of the respirator in position
against
the wearers
body.
(b)
Harnesses shall be designed and
constructed
to permit easy removal
and
replacement of respirator parts,
and,
where applicable, provide for holding
a
full facepiece in the ready position
when
not in use.
84.1134
Respirator containers; minimum
requirements.
(a)
Except as provided in paragraph
(b)
of this section each respirator shall
be
equipped with a substantial, durable
container
bearing markings which
show
the applicants
name, the type of
respirator
it contains, and all appropriate
approval
labels. Except for dust,
fume,
and mist respirators, the commercial
designation
of the respirator it
contains
shall be shown.
(b)
Containers for single-use respirators
may
provide for storage of
more
than one respirator, however,
such
containers shall be designed and
constructed
to prevent contamination
of
respirators which are not removed,
and
to prevent damage to respirators
during
transit.
(c)
Containers for gas masks combinations
shall
be designed and constructed
to
permit easy removal of the
mask.
84.1136
84.1135
Half-mask facepieces, full
facepieces,
hoods, helmets, and
mouthpieces;
fit; minimum requirements.
(a)
Half-mask facepieces and full
facepieces
shall be designed and constructed
to
fit persons with various facial
shapes
and sizes either:
(1)
By providing more than one face-
piece
size; or
(2)
By providing one facepiece size
which
will fit varying facial shapes and
sizes.
(b)
Full facepieces shall provide for
optional
use of corrective spectacles or
lenses,
which shall not reduce the respiratory
protective
qualities of the respirator.
(c)
Hoods and helmets shall be designed
and
constructed to fit persons
with
various head sizes, provide for the
optional
use of corrective spectacles or
lenses,
and insure against any restriction
of
movement by the wearer.
(d)
Mouthpieces shall be equipped
with
noseclips which are securely attached
to
the mouthpiece or respirator
and
provide an airtight seal.
(e)
Facepieces, hoods, and helmets
shall
be designed to prevent eyepiece
fogging.
(f)
Half-mask facepieces shall not
interfere
with the fit of common industrial
safety
corrective spectacles, as
determined
by the Institutes
facepiece
tests
in 84.1141, 84.1142, and 84.1156(b).
84.1136
Facepieces, hoods, and helmets;
eyepieces;
minimum requirements.
(a)
Facepieces, hoods, and helmets
shall
be designed and constructed to
provide
adequate vision which is not
distorted
by the eyepieces.
(b)
All eyepieces of gas masks combinations
shall
be designed and constructed
to
be impact and penetration
resistant.
Federal Specification, Mask,
Air
Line: and Respirator, Air Filtering,
Industrial,
GGG-M-125d, October 11,
1965,
with interim amendment-1, July
30,
1969, is an example of an appropriate
standard
for determining impact and
penetration
resistance. Copies of GGG-
M-125d
may be obtained from the
NIOSH,
Certification and Quality Assurance
Branch,
1095 Willowdale Road,
Morgantown,
WV 265052888.
597
84.1137
84.1137
Inhalation and exhalation
valves;
minimum requirements.
(a)
Inhalation and exhalation valves
shall
be protected against distortion.
(b)
Inhalation valves shall be designed
and
constructed and provided
where
necessary to prevent excessive
exhaled
air from adversely affecting
filters,
cartridges, and canisters, except
where
filters of dust, fume, and
mist
respirators are specifically designed
to
resist moisture as prescribed
in
84.1145.
(c)
Exhalation valves shall be:
(1)
Provided where necessary;
(2)
Protected against damage and external
influence;
and
(3)
Designed and constructed to prevent
inward
leakage of contaminated
air.
84.1138
Head harnesses; minimum requirements.
(a)
All facepieces shall be equipped
with
head harnesses designed and constructed
to
provide adequate tension
during
use and an even distribution of
pressure
over the entire area in contact
with
the face.
(b)
Facepiece head harnesses, except
those
employed on single-use dust,
fume,
and mist respirators, shall be adjustable
and
replaceable.
(c)
Mouthpieces shall be equipped,
where
applicable, with adjustable and
replaceable
harnesses, designed and
constructed
to hold the mouthpiece in
place.
84.1139
Air velocity and noise levels;
hoods
and helmets; minimum re
quirements.
Noise
levels generated by the respirator
will
be measured inside the
hood
or helmet at maximum airflow
obtainable
and shall not exceed 80 dBA.
84.1140
Dust, fume, and mist res
pirators;
performance require
ments;
general.
Dust,
fume, and mist respirators and
the
individual components of each such
device
shall, as appropriate, meet the
requirements
for performance and protection
specified
in the tests described
in
84.1141 through 84.1152 and prescribed
in
Tables 12 and 13.
42
CFR Ch. I (10110 Edition)
84.1141
Isoamyl acetate tightness
test;
dust, fume, and mist respirators
designed
for respiratory
protection
against fumes of various
metals
having an air contamination
level
not less than 0.05 milligram
per
cubic meter; minimum requirements.
(a)
The respirator will be modified in
such
a manner that all of the air that
normally
would be inhaled through the
inhalation
port(s) is drawn through an
efficient
activated charcoal-filled canister,
or
cartridge(s), without interference
with
the face-contacting portion
of
the facepiece.
(b)
The modified respirator will be
worn
by persons for at least 2 minutes
each
in a test chamber containing 100
parts
(by volume) of isoamyl-acetate
vapor
per million parts of air.
(c)
The odor of isoamyl-acetate shall
not
be detected by the wearers of the
modified
respirator while in the test
atmosphere.
84.1142
Isoamyl acetate tightnesstest; respirators designed for respiratory
protection
against dusts,
fumes,
and mists having an air contamination
level
less than 0.05 milligram
per
cubic meter, or against
radionuclides;
minimum requirements.
(a)
The applicant shall provide a
charcoal-filled
canister or cartridge of
a
size and resistance similar to the filter
unit
with connectors which can be
attached
to the facepiece in the same
manner
as the filter unit.
(b)(1)
The canister or cartridge will
be
used in place of the filter unit, and
persons
will each wear a modified half-
mask
facepiece for 5 minutes in a test
chamber
containing 100 parts (by volume)
of
isoamyl-acetate vapor per million
parts
of air.
(2)
The following work schedule will
be
performed by each wearer in the test
chamber:
(i)
Two minutes walking, nodding,
and
shaking head in normal movements;
and
(ii)
Three minutes exercising and
running
in place.
(3)
The facepiece shall be capable of
adjustment,
according to the applicants
instructions,
to each wearers
face,
and the odor of isoamyl-acetate
598
Public
Health Service, HHS
shall
not be detectable by any wearer
during
the test.
(c)
Where the respirator is equipped
with
a full facepiece, hood, helmet, or
mouthpiece,
the canister or cartridge
will
be used in place of the filter unit,
and
persons will each wear the modified
respiratory-inlet
covering for 5
minutes
in a test chamber containing
1,000
parts (by volume) of isoamyl-acetate
vapor
per million parts of air, performing
the
work schedule specified in
paragraph
(b)(2) of this section.
84.1143
Dust, fume, and mist air-purifying
filter
tests; performance requirements;
general.
Dust,
fume, and mist respirators will
be
tested in accordance with the schedule
set
forth in Table 13 of this subpart
to
determine their effectiveness as protection
against
the particulate hazards
specified
in Table 13.
84.1144
Silica dust test for dust,
fume,
and mist respirators; single-
use
or reusable filters; minimum requirements.
(a)
Three non-powered respirators
with
single-use filters will be tested for
periods
of 90 minutes each at a continuous
airflow
rate of 32 liters per
minute.
(b)
The relative humidity in the test
chamber
will be 2080 percent, and the
room
temperature approximately 25 C.
(c)
The test suspension in the chamber
will
not be less than 50 nor more
than
60 milligrams of flint (99+ percent
free
silica) per cubic meter of air.
(d)
The flint in suspension will be
ground
to pass 99+ percent through a
270-mesh
sieve.
(e)
The particle-size distribution of
the
test suspension will have a geometric
mean
of 0.4 to 0.6 micrometer,
and
the standard geometric deviation
will
not exceed 2.
(f)
The total amount of unretained
test
suspension in samples taken during
testing
shall not exceed 1.5 milligrams
for
a non-powered air-purifying
respirator.
(g)
Three non-powered respirators
with
reusable filters will be tested and
shall
meet the requirements specified
in
paragraphs (a) through (f) of this
section;
each filter shall be tested
three
times: Once as received; once
after
cleaning; and once after re
84.1147
cleaning.
The applicants
instructions
shall
be followed for each cleaning.
84.1145
Silica dust test; non-poweredsingle-use dust respirators; minimum
requirements.
(a)
Three respirators will be tested.
(b)
As described in 84.1144, airflow
will
be cycled through the respirator
by
a breathing machine at the rate of
24
respirations per minute with a
minute
volume of 40 liters; a breathing
machine
cam with a work rate of 622
kg.-m.2/minute
shall be used.
(c)
Air exhaled through the respirator
will
be 35 2 C. with 94 3 percent
relative
humidity. #
(d)
Air inhaled through the respirator
will
be sampled and analyzed for respirator
leakage.
(e)
The total amount of unretained
test
suspension, after drying, in samples
taken
during testing, shall not exceed
1.8
milligrams for any single test.
84.1146
Lead fume test for dust,
fume,
and mist respirators; minimum
requirements.
(a)
Three non-powered respirators
will
be tested for a period of 312 minutes
each
at a continuous airflow rate
of
32 liters per minute.
(b)
The relative humidity in the test
chamber
will be 2080 percent, and the
room
temperature approximately 25 C.
(c)
The test suspension in the test
chamber
will not be less than 15 nor
more
than 20 milligrams of freshly generated
lead-oxide
fume, calculated as
lead
(Pb), per cubic meter of air.
(d)
The fume will be generated by impinging
an
oxygen-gas flame on molten
lead.
(e)
Samples of the test suspension
will
be taken during each test period
for
analysis.
(f)
The total amount of unretained
test
suspension in the samples taken
during
testing, which is analyzed and
calculated
as lead (Pb), shall not exceed
1.5
milligrams of lead for a non-
powered
air-purifying respirator.
84.1147
Silica mist test for dust,
fume,
and mist respirators; minimum
requirements.
(a)
Three non-powered respirators
will
be tested for a period of 312 minutes
each
at a continuous airflow rate
of
32 liters per minute.
599
84.1148
(b)
The room temperature in the test
chamber
will be approximately 25C.
(c)
The test suspension in the test
chamber
will not be less than 20 nor
more
than 25 milligrams of silica mist,
weighed
as silica dust, per cubic meter
of
air.
(d)
Mist will be produced by spraying
an
aqueous suspension of flint (99+ percent
free
silica), and the flint shall be
ground
to pass 99+ percent through a
270-mesh
sieve.
(e)
Samples of the test suspension
will
be taken during each test period
for
analysis.
(f)
The total amount of silica mist
unretained
in the samples taken during
testing,
weighed as silica dust, shall
not
exceed 2.5 milligrams for a non-
powered
air-purifying respirator.
42
CFR Ch. I (10110 Edition)
84.1148
Tests for respirators designed
for
respiratory protection
against
more than one type of dispersoid;
minimum
requirements.
Respirators
designed as respiratory
protection
against more than one particulate
hazard
(dust, fume, or mist)
shall
comply with all the requirements
of
this part, with respect to each of the
specific
hazards involved.
84.1149
Airflow resistance tests; all
dust,
fume, and mist respirators;
minimum
requirements.
(a)
Resistance to airflow will be
measured
in the facepiece, mouthpiece,
hood,
or helmet of a dust, fume, or
mist
respirator mounted on a test fixture
with
air flowing at a continuous
rate
of 85 liters per minute, both before
and
after each test conducted in accordance
with
84.1144 through 84.1147.
(b)
The maximum allowable resistance
requirements
for dust, fume, and
mist
respirators are as follows:
MAXIMUM
RESISTANCE
[mm.
water-column height]
Type
of respirator Initial inhalation
Final
inhalation
Exhalation
Pneumoconiosis-
and fibrosis-producing dusts, or dusts and mists
............................
Dust,
fume, and mist, with single-use filter
...................................................................
Dust,
fume, and mist, with reusable filter
.....................................................................
Radon
daughter
.............................................................................................................
Asbestos
dust and mist
.................................................................................................
12
30
20
18
18
15
50
40
1
25
25
15
20
20
15
15
1
Measured after silica dust test described in 84.1144.
84.1150
Exhalation valve leakage
test;
minimum requirements.
(a)
Dry exhalation valves and valve
seats
will be subjected to a suction of
25
mm. water-column height while in a
normal
operating position.
(b)
Leakage between the valve and
valve
seat shall not exceed 30 milliliters
per
minute.
84.1151
DOP filter test; respirators
designed
as respiratory protection
against
dusts, fumes, and mists having
an
air contamination level less
than
0.05 milligram per cubic meter
and
against radionuclides; minimum
requirements.
(a)
All single air-purifying respirator
filter
units will be tested in an atmosphere
concentration
of 100 micrograms
of
DOP per liter of air at continuous
flow
rates of 32 and 85 liters per minute
for
a period of 5 to 10 seconds.
(b)
Where filters are to be used in
pairs,
the flow rates will be 16 and 42.5
liters
per minute, respectively, through
each
filter.
(c)
The filter will be mounted on a
connector
in the same manner as used
on
the respirator, and the total leakage
for
the connector and filter shall not
exceed
0.03 percent of the ambient DOP
concentration
at either flow rate.
84.1152
Silica dust loading test; respirators
designed
as protection
against
dusts, fumes, and mists having
an
air contamination level less
than
0.05 milligram per cubic meter
and
against radionuclides; minimum
requirements.
(a)
Three non-powered respirators
will
be tested in accordance with the
600
Public
Health Service, HHS
provisions
of 84.1144, or equivalent,
and
shall meet the minimum requirements
of
84.1144 and 84.1149.
(b)
Three powered air-purifying respirators
will
be tested in accordance
with
the provisions of 84.1144 except
they
will be tested for a period of 4
hours
each at a flowrate not less than
115
liters per minute to tight-fitting
facepieces,
and not less than 170 liters
per
minute to loose-fitting hoods and
helmets.
The total amount of
unretained
test suspension in samples
taken
during testing shall not exceed
14.4
milligrams for a powered air-purifying
respirator
with tight-fitting face-
piece,
and 21.3 milligrams for a powered
air-purifying
respirator with loose-fitting
hood
or helmet. They shall meet
the
minimum requirements of 84.1149.
84.1153
Dust, fume, mist, and smoke
tests;
canister bench tests; gas
masks
canisters containing filters;
minimum
requirements.
(a)
Gas mask canisters containing filters
for
protection against dusts,
fumes,
mists, and smokes in combination
with
gases, vapors, or gases and
vapors,
will be tested as prescribed in
84.1140
except for the breathing resistance
which
will be in accordance with
84.122.
(b)
Gas mask canisters designed for
protection
against smokes will be tested
in
an atmospheric concentration of
100
micrograms of dioctyl phthalate
per
liter of air at continuous flow rates
of
32 liters per minute and 85 liters per
minute
for a period of 5 to 10 seconds,
and
the DOP leakage through the canister
shall
not exceed 0.03 percent of
the
test concentration.
(c)
Gas mask canisters containing filters
for
protection against dusts,
fumes,
mists, and smokes in combination
with
gases, vapors, or gases and
vapors,
will be tested as prescribed in
84.126.
84.1154
Canister and cartridge requirements.
(a)
Where two or more canisters or
cartridges
are used in parallel, their resistance
to
airflow shall be essentially
equal.
(b)
The color and markings of all canisters
and
cartridges or labels shall
conform
with the requirements of the
84.1156
American
National Standards Institute,
American
National Standard for
Identification
of Air-Purifying Respirator
Canisters
and Cartridges, ANSI
K13.11973.
ANSI K13.1 is incorporated
by
reference and has been approved by
the
Director of the Federal Register in
accordance
with 5 U.S.C. 552(a) and 1
CFR
part 51. Copies may be obtained
from
American National Standards Institute,
Inc.,
1430 Broadway, New York,
NY
10018. Copies may be inspected at
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888, or
at
the National Archives and Records
Administration
(NARA). For information
on
the availability of this material
at
NARA, call 2027416030, or go
to:
http://www.archives.gov/
federallregister/
codeloflfederallregulations/
ibrllocations.html.
84.1155
Filters used with canisters
and
cartridges; location; replace
ment.
(a)
Particulate matter filters used in
conjunction
with a canister or cartridge
shall
be located on the inlet side
of
the canister or cartridge.
(b)
Filters shall be incorporated into
or
firmly attached to the canister or
cartridge
and each filter assembly
shall,
where applicable, be designed to
permit
its easy removal from and replacement
on
the canister or cartridge.
84.1156
Pesticide respirators; performance
requirements;
general.
Pesticide
respirators and the individual
components
of each such device
shall,
as appropriate, meet the following
minimum
requirements for performance
and
protection:
(a)
Breathing resistance test. (1) Airflow
resistance
will be measured in the
facepiece,
mouthpiece, hood, or helmet
of
a pesticide respirator mounted on a
test
fixture with air flowing at a continuous
rate
of 85 liters per minute,
both
before and after each test conducted
in
accordance with paragraphs
(c)
and (f) of this section.
(2)
The maximum allowable resistance
requirements
for pesticide respirators
are
as follows:
601
84.1156
42 CFR Ch. I (10110 Edition)
MAXIMUM
RESISTANCE
[mm.
water-column height]
Type
of pesticide respirator
Inhalation
Exhalation
Initial
Final 1
Front-
or back-mounted gas mask
................................................................................
Chin-style
gas mask
......................................................................................................
Powered
air-purifying 2
..................................................................................................
Chemical
Cartridge
........................................................................................................
70
65
2
50
50
85
80
2
70
7020
20
20
20
1
Measured at end of the service life specified in Table 14 of this
subpart.
2
Resistance of filter(s), cartridge(s), and breathing tube(s) only
with blower not operating.
(b)
Facepiece test. (1) The complete
pesticide
respirator will be fitted to
the
faces of persons having varying facial
shapes
and sizes.
(2)
Where the applicant specifies a
facepiece
size or sizes for his respirator
together
with the approximate measurements
of
faces they are designed to
fit,
the Institute will provide test subjects
to
suit such facial measurements.
(3)
Any pesticide respirator part
which
must be removed to perform the
facepiece
fit test shall be replaceable
without
special tools and without disturbing
facepiece
fit.
(4)
The facepiece or mouthpiece fit
test
using positive or negative pressure
recommended
by the applicant and described
in
his instructions will be used
during
each test.
(5)(i)
Each wearer will enter a chamber
containing
1,000 p.p.m. isoamyl-acetate
vapor
for a respirator equipped
with
a full facepiece, mouthpiece,
hood,
or helmet and 100 p.p.m. isoamyl-
acetate
vapor for a respirator equipped
with
a half-mask facepiece.
(ii)
The facepiece, mouthpiece, hood,
or
helmet may be adjusted, if necessary,
in
the test chamber before
starting
the test.
(iii)
Each wearer will remain in the
chamber
while performing the following
activities:
(A)
Two minutes, nodding and turning
head;
(B)
Two minutes, calisthenic arm
movements;
(C)
Two minutes, running in place;
and
(D)
Two minutes, pumping with a
tire
pump into a 28-liter (1 cubic foot)
container.
(iv)
Each wearer shall not detect the
odor
of isoamyl-acetate during the
test.
(c)
Silica dust test. Three completely
assembled
pesticide respirators will be
tested
with a mechanical-testing apparatus
as
follows:
(1)
Temperature in the test chamber
will
be approximately 25 C.
(2)
Continuous airflow through the
respirator
will be 32 liters per minute
for
front-mounted, back-mounted, and
chin-style
gas mask pesticide respirators
and
chemical cartridge pesticide
respirators,
and not less than 115
(4
cubic feet) liters per minute to tight-
fitting
facepieces and 170 liters (6 cubic
feet)
per minute to loose-fitting hoods
and
helmets of powered air-purifying
respirators.
(3)
The test aerosol will contain 5060
milligrams
of 99+ percent free silica
per
cubic meter of air.
(4)
The particle size distribution of
the
test suspension will have a geometric
mean
diameter of 0.4 to 0.6 micrometer,
with
a standard geometric
deviation
less than 2.
(5)
Front-mounted, back-mounted,
and
chin-style gas mask pesticide respirators
and
chemical cartridge pesticide
respirators
will be tested for 90
minutes
and powered air-purifying respirators
will
be tested for 4 hours.
(d)
Lead fume test. Three completely
assembled
pesticide respirators will be
tested
with a mechanical-testing apparatus
as
follows:
(1)
Continuous airflow through the
respirator
will be 32 liters per minute
for
front-mounted, back-mounted, and
chin-style
gas mask pesticide respirators
and
chemical cartridge pesticide
respirators
and not less than 115
liters
(4 cubic feet) per minute, for
powered
air-purifying respirators with
tight-fitting
facepieces, and not less
than
170 liters (6 cubic feet) per minute
for
powered air-purifying respirators
with
loose-fitting hoods and helmets.
602
Public
Health Service, HHS
(2)
The test aerosol will contain 1520
milligrams
of freshly generated lead-
oxide
fume, calculated as lead, per
cubic
meter of air.
(3)
The fume will be generated by impinging
an
oxygen-gas flame on molten
lead.
(4)
Front-mounted, back-mounted,
and
chin-style gas mask pesticide respirators
and
chemical cartridge pesticide
respirators
will be tested for 90
minutes
and powered air-purifying pesticide
respirators
will be tested for 4
hours.
(5)
The total amount of unretained
test
suspension, which is analyzed and
calculated
as lead, shall not exceed:
(i)
0.43 milligram for any 90-minute
test;
(ii)
4.8 milligrams for any 4-hour test
made
at 115 liters (4 cubic feet) per
minute;
or
(iii)
6.2 milligrams for any 4-hour test
made
at 170 liters (6 cubic feet) per
minute.
(e)
Dioctyl-phthalate test. (1) All canisters
submitted
for use with front-
mounted
and back-mounted gas mask
pesticide
respirators will be tested in
an
atmospheric concentration of 100
micrograms
of dioctyl-phthalate per
liter
of air at continuous flow rates of
32
and 85 liters per minute for a test period
of
5 to 10 seconds.
(2)
The DOP leakage through the canister
shall
not exceed 0.03 percent of
the
ambient DOP concentration.
(f)
Bench tests for pesticide respirators.
(1)(i)
Bench tests will be made on an
apparatus
that allows the test atmosphere
at
50 5 percent relative humidity
and
at room temperature (252.5
C.)
to enter the canister or cartridge
at
predetermined concentrations and
rates
of flow, and that has a means for
determining
the test life of the canister
or
cartridge against carbon tetrachloride.
(ii)
Canisters and cartridges will be
tested
as they are used on each pesticide
respirator,
either singly or in
pairs.
(iii)
Three canisters or cartridges or
pairs
of cartridges will be removed
from
containers and tested as received
from
the applicant.
84.1157
(iv)
Two canisters, cartridges, or
pairs
of cartridges will be equilibrated
at
room temperature by passing 25 percent
relative
humidity air through
them
at the following flow rates (expressed
as
liters per minute (l.p.m.))
for
6 hours:
Airflow
Type
of canister or cartridge
rate,
l.p.m.
Air-purifying
canister ..............................................
64
Air-purifying
cartridge ............................................
25
Powered
air-purifying with tight-fitting facepiece ...
115
Powered
air-purifying with loose-fitting hood or
helmet
................................................................
170
(v)
Two canisters, cartridges, or pairs
of
cartridges will be equilibrated at
room
temperature by passing 85 percent
relative
humidity air through
them
at the flow rates stated in paragraph
(f)(1)(iv)
of this section for 6
hours.
(vi)
The equilibrated canisters or cartridges
will
be resealed, kept in an upright
position
at room temperature,
and
tested within 18 hours.
(2)
Canisters and cartridges tested in
accordance
with the provisions of this
section
shall meet the requirements
specified
in Table 14 of this subpart.
84.1157
Chemical cartridge respirators
with
particulate filters;
performance
requirements; general.
Chemical
cartridge respirators with
particulate
filters and the individual
components
of each such device shall,
as
appropriate, meet the following
minimum
requirements for performance
and
protection:
(a)
Breathing resistance test. (1) Resistance
to
airflow will be measured in the
facepiece,
mouthpiece, hood, or helmet
of
a chemical cartridge respirator
mounted
on a test fixture with air
flowing
at a continuous rate of 85 liters
per
minute, both before and after each
test
conducted in accordance with
paragraphs
(d) through (f) of this section.
(2)
The maximum allowable resistance
requirements
for chemical cartridge
respirators
are as follows:
603
84.1157
42 CFR Ch. I (10110 Edition)
MAXIMUM
RESISTANCE
[mm.
water-column height]
Type
of chemical cartridge respirator
Inhalation
Exhalation
Initial
Final 1
For
gases, vapors, or gases and vapors, and dusts, fumes, and mists
......................
For
gases, vapors, or gases and vapors, and mists of paints, lacquers,
and enamels
50
50
70
70
20
20
1
Measured at end of service life specified in Table 11 in subpart L of
this part.
(b)
Facepiece test. The facepiece test
will
be conducted as specified in
84.205.
(c)
Lacquer and enamel mist tests; general.
(1)
Three respirators with cartridges
containing
or having attached
to
them, filters for protection against
mists
of paints, lacquers, and enamels
shall
be tested in accordance with the
provisions
of paragraph (f) of this section.
(2)
In addition to the test requirements
set
forth in paragraph (c)(1) of
this
section, three such respirators will
be
tested against each aerosol in accordance
with
the provisions of paragraphs
(d)
and (e) of this section.
(d)
Lacquer mist test. (1) Temperature
in
the test chamber will be approximately
25
C.
(2)
Continuous airflow through the
respirator
will be 32 liters per minute
for
air-purifying respirators, and not
less
than 115 liters per minute to tight
fitting
facepieces and 170 liters per
minute
to loose-fitting hoods and helmets
of
powered air-purifying respirators.
(3)
Airflow through the chamber will
be
2025 air changes per minute.
(4)
The atomizer employed will be a
No.
645 nozzle with setup 3, or equivalent,
operating
at 69 kN/m.2 (10 pounds
per
square inch gage).
(5)
The test aerosol will be prepared
by
atomizing a mixture of one volume
of
clear cellulose nitrate lacquer and
one
volume of lacquer thinner. The lacquer
described
in Federal Specification
TT-L-31,
October 7, 1953, is an example
of
an acceptable lacquer. Copies of TT-
L-31
may be inspected or obtained from
the
NIOSH, Certification and Quality
Assurance
Branch, 1095 Willowdale
Road,
Morgantown, WV 265052888.
(6)
The concentration of cellulose nitrate
in
the test aerosol will be 95125
milligrams
per cubic meter.
(7)
The test aerosol will be drawn to
each
respirator for a total of 156 minutes
for
air-purifying respirators and
240
minutes for powered air-purifying
respirators.
(8)
The total amount of unretained
mist
in the samples taken during testing,
weighed
as cellulose nitrate, shall
not
exceed 5 milligrams for an air-purifying
respirator,
28 milligrams for a
powered
air-purifying respirator with
tight-fitting
facepiece, and 41 milligrams
for
a powered air-purifying respirator
with
loose-fitting hood or helmet.
(e)
Enamel mist test. (1) Temperature
in
the test chamber will be approximately
25
C.
(2)
Continuous airflow through the
respirator
will be 32 liters per minute
for
air-purifying respirators, and not
less
than 115 liters per minute to tight-
fitting
facepieces and 170 liters per
minute
to loose-fitting hoods and helmets
of
powered air-purifying respirators.
(3)
Airflow through the chamber will
be
2025 air changes per minute.
(4)
The atomizer employed will be a
No.
64 nozzle with setup 1A, or equivalent,
operating
at 69 kN/m.2 (10 pounds
per
square inch gage).
(5)
The test aerosol will be prepared
by
atomizing a mixture of 1 volume of
white
enamel and 1 volume of turpentine.
The
enamel described in Federal
Specification
TT-E489b, May 12, 1953,
with
amendment-1 of 9 November 1955
is
an example of an acceptable enamel.
Copies
of TT-E489b may be inspected
or
obtained from the NIOSH, Certification
and
Quality Assurance Branch,
1095
Willowdale Road, Morgantown, WV
265052888.
(6)
The concentration of pigment in
the
test aerosol, weighed as ash, will be
95125
milligrams per cubic meter.
604
Public
Health Service, HHS Pt. 84, Subpt. KK, Tables
(7)
The test aerosol will be drawn to
each
respirator for a total of 156 minutes
for
air-purifying respirators and
240
minutes for power air-purifying respirators.
(8)
The total amount of unretained
mist
in the samples taken during testing,
weighed
as ash, shall not exceed 1.5
milligrams
for any air-purifying respirator,
8.3
milligrams for a powered
air-purifying
respirator with tight-fitting
facepiece,
and 12.3 milligrams for
a
powered air-purifying respirator with
loose-fitting
hood or helmet.
(f)
Bench tests; gas and vapor tests. (1)
Bench
tests will be made in accordance
with
84.207 and tested cartridges shall
meet
the minimum requirements set
forth
in Table 11 of subpart L of this
part.
Cartridges will be equilibrated in
accordance
with paragraph (f)(2) of this
section.
(2)(i)
Two powered air-purifying cartridges
or
pairs of cartridges will be
equilibrated
at room temperature by
passing
25 percent relative humidity
air
through them at the following flow
rates
(expressed in liters per minute
(l.p.m.))
for 6 hours:
Airflow
Type
of cartridge rate,
l.p.m.
Powered
air purifying with tight-fitting facepiece ... 115
Powered
air purifying with loose-fitting hood or
helmet
................................................................ 170
(ii)
Two powered air-purifying cartridges
or
pairs of cartridges will be
equilibrated
by passing 85 percent relative
humidity
air through them at the
flow
rates stated in paragraph (f)(2)(i)
of
this section.
(iii)
All cartridges will be resealed,
kept
in an upright position, at room
temperatures,
and tested within 18
hours.
84.1158
Dust, fume, and mist tests;
respirators
with filters; minimum
requirements;
general.
(a)
Three respirators with cartridges
containing,
or having attached to
them,
filters for protection against
dusts,
fumes, and mists, except the
mists
of paints, lacquers, and enamels,
will
be tested in accordance with the
provisions
of 84.1157(f).
(b)
In addition to the test requirements
set
forth in paragraph (a) of this
section,
three such respirators will be
tested,
as appropriate, in accordance
with
the provisions of 84.1141 through
84.1152;
however, the maximum allowable
resistance
of complete dust, fume,
and
mist, and gas, vapor, or gas and
vapor
chemical cartridge respirators
shall
not exceed the maximum allowable
limits
set forth in 84.1157(a)(2).
TABLES
TO SUBPART KK OF PART 84
TABLE
12FACEPIECE TEST REQUIREMENTS
[42
CFR Part 84, Subpart KK]
Respirator
types
Pressure
tightness
test
1
Isoamyl
acetate test
84.1141
84.1142
Dusts:
Air Contamination Level not less than 0.05 mg/M3 or 2 mppcf
........................
Fumes:
Air Contamination Level not less than 0.05 mg/M3
.........................................
Mists:
Air Contamination Level not less than 0.05 mg/M3 or 2 mppcf
.........................
Dusts,
Fumes, and Mists: Air Contamination Level less than 0.05 mg/M3 or 2
mppcf,
and
radionuclides
.......................................................................................................
Radon
daughters
...........................................................................................................
Asbestos-containing
dusts and mists
............................................................................
X
X
X
X
X
X
X
X
X
1
Test is required only where applicable.
605
Pt.
85
42
CFR Ch. I (10110 Edition)
TABLE
13AIR-PURIFYING AND POWERED AIR-PURIFYING RESPIRATOR FILTER TESTS
REQUIRED FOR
APPROVAL
[42
CFR Part 84, Subpart KK]
Respirator
types
Silica
dust tests Lead fume
test
84.1146
Silica
mist
test
84.1147
DOP
test
84.115184.1144
84.1145 84.1152
Dusts:
Air Contamination Level not less
than
0.05 mg/M3 or 2 mppcf ............. X
Fumes:
Air Contamination Level not
less
than 0.05 mg/M3 ........................ X
Mists:
Air Contamination Level not less
than
0.05 mg/M3 or 2 mppcf ............. X
Dusts,
Fumes, and Mists: Air Contamination
Level
less than 0.05 mg/M3 or
2
mppcf, and radionuclides ............... X X
Radon
daughters .................................. 1 X 2 X
Asbestos-containing
dusts and mists ... 2 X 3 X
Single
use dust and mist respirators .... 3 X 3 X
1
For resistance only.
2
For penetration only.
3
Test required only where applicable.
TABLE
14CARBON TETRACHLORIDE BENCH TESTS AND REQUIREMENTS FOR CANISTERS AND
CARTRIDGES
[42
CFR part 84, Subpart KK]
Type
of pesticide respirator
Test
concentration
p.p.m.
CCl4
Flow
rate
l.p.m.
Number
of
tests
Minimum
life
minutes
1
Chest-mounted
or back-mounted gas mask (as received) ..................
Chest-mounted
or back-mounted gas mask (equilibrated) ..................
Chin-style
gas mask (as received)
.......................................................
Chin-style
gas mask (equilibrated)
.......................................................
Chemical
Cartridge respirator (as received)
.........................................
Chemical
cartridge respirator (equilibrated)
..........................................
Powered
air-purifying respirator (tight-fitting facepiece, as received) ..
Powered
air-purifying respirator (tight-fitting facepiece, equilibrated) ..
Powered
air-purifying respirator (loose-fitting hood or helmet, as received)
...............................................................................................
Powered
air-purifying respirator (loose-fitting hood or helmet, equilibrated)
...............................................................................................
20,000
20,000
5,000
5,000
1,000
1,000
1,000
1,000
1,000
1,000
64
32
64
32
64
32
2
115
2
115
3
170
3
170
3
4
3
4
3
4
3
4
3
4
12
12
12
12
50
50
50
25
50
25
1
Minimum life will be determined at 5 p.p.m. leakage.
2
The flow rate shall be the effective flow rate of the device, but
shall be not less than 115 l.p.m.
3
The flow rate shall be the effective flow rate of the device, but
shall be not less than 170 l.p.m.
PART
85REQUESTS FOR HEALTH
HAZARD
EVALUATIONS
Sec.
85.1
Applicability.
85.2
Definitions.
85.3
Procedures
for requesting health hazard
evaluations.
85.31
Contents
of a request for health hazard
evaluations.
85.4
Acting on requests.
85.5
Authority for investigations.
85.6
Advance notice of visits.
85.7
Conduct of investigations.
85.8
Provision
of suitable space for employee
interviews
and examinations;
identification
of employees.
85.9
Representatives
of employers and employees;
employee
requests.
85.10
Imminent dangers.
85.11
Notification
of determination to employers,
affected
employees, and Department
of
Labor.
85.12
Subsequent
requests for health hazard
evaluations.
AUTHORITY:
Sec. 8(g), 84 Stat. 1600; 29
U.S.C.
657(g) and sec. 508, 83 Stat. 803; 30
U.S.C.
957.
SOURCE:
37 FR 23640, Nov. 7, 1972, unless
otherwise
noted.
85.1
Applicability.
This
part 85 applies to health hazard
evaluations
requested by any employer
or
authorized representative of employees
under
section 20(a)(6) of the Occupational
Safety
and Health Act of
1970
or section 501(a)(11) of the Federal
Mine
Safety and Health Act of 1977.
606
| File Type | text/plain |
| File Modified | 0000-00-00 |
| File Created | 0000-00-00 |