29 Cfr 1910.126

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§ 1910.126

29 CFR Ch. XVII (7–1–09 Edition)

must be from a safe and accessible location.
(4) You must ensure that automatic
pumps are used when gravity flow from
the bottom drain is impractical.
(d) When must my conveyor system
shut down automatically? If your conveyor system is used with a dip tank,
the system must shut down automatically:
(1) If there is a fire; or
(2) If the ventilation rate drops below
what is required by paragraph (b) of
§ 1910.124.
(e) What ignition and fuel sources
must be controlled? (1) In each vapor
area and any adjacent area, you must
ensure that:
(i) All electrical wiring and equipment conform to the applicable hazardous (classified)-area requirements of
subpart S of this part (except as specifically permitted in paragraph (g) of
§ 1910.126); and
(ii) There are no flames, spark-producing devices, or other surfaces that
are hot enough to ignite vapors.
(2) You must ensure that any portable container used to add liquid to the
tank is electrically bonded to the dip
tank and positively grounded to prevent static electrical sparks or arcs.
(3) You must ensure that a heating
system that is used in a drying operation and could cause ignition:
(i) Is installed in accordance with
NFPA 86A–1969, Standard for Ovens and
Furnaces (which is incorporated by reference in § 1910.6 of this part);
(ii) Has adequate mechanical ventilation that operates before and during
the drying operation; and
(iii) Shuts down automatically if any
ventilating fan fails to maintain adequate ventilation.
(4) You also must ensure that:
(i) All vapor areas are free of combustible debris and as free as practicable
of combustible stock;
(ii) Rags and other material contaminated with liquids from dipping or
coating operations are placed in approved waste cans immediately after
use; and
(iii) Waste can contents are properly
disposed of at the end of each shift.
(5) You must prohibit smoking in a
vapor area and must post a readily

visible ‘‘No Smoking’’ sign near each
dip tank.
(f) What fire protection must I provide? (1) You must provide the fire protection required by this paragraph (f)
for:
(i) Any dip tank having a capacity of
at least 150 gallons (568 L) or a liquid
surface area of at least 4 feet 2 (0.38
m 1); and
(ii) Any hardening or tempering tank
having a capacity of at least 500 gallons (1893 L) or a liquid surface area of
at least 25 feet 2 (2.37 m 2).
(2) For every vapor area, you must
provide:
(i) Manual fire extinguishers that are
suitable for flammable and combustible liquid fires and that conform to
the requirements of § 1910.157; and
(ii) An automatic fire-extinguishing
system that conforms to the requirements of subpart L of this part.
(3) You may substitute a cover that
is closed by an approved automatic device for the automatic fire-extinguishing system if the cover:
(i) Can also be activated manually;
(ii) Is noncombustible or tin-clad,
with the enclosing metal applied with
locked joints; and
(iii) Is kept closed when the dip tank
is not in use.
(g) To what temperature may I heat
a liquid in a dip tank? You must maintain the temperature of the liquid in a
dip tank:
(1) Below the liquid’s boiling point;
and
(2) At least 100 °F (37.8 °C) below the
liquid’s autoignition temperature.
§ 1910.126 Additional requirements for
special dipping and coating operations.
In addition to the requirements in
§§ 1910.123 through 1910.125, you must
comply with any requirement in this
section that applies to your operation.
(a) What additional requirements
apply to hardening or tempering
tanks?
(1) You must ensure that hardening
or tempering tanks:
(i) Are located as far as practicable
from furnaces;
(ii) Are on noncombustible flooring;
and

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cprice-sewell on DSKDVH8Z91PROD with CFR

Occupational Safety and Health Admin., Labor
(iii) Have noncombustible hoods and
vents (or equivalent devices) for venting to the outside. For this purpose,
vent ducts must be treated as flues and
kept away from combustible materials,
particularly roofs.
(2) You must equip each tank with an
alarm that will sound if the temperature of the liquid comes within 50 °F (10
°C) of its flashpoint (the alarm set
point).
(3) When practicable, you must also
provide each tank with a limit switch
to shut down the conveyor supplying
work to the tank.
(4) If the temperature of the liquid
can exceed the alarm set point, you
must equip the tank with a circulating
cooling system.
(5) If the tank has a bottom drain,
the bottom drain may be combined
with the oil-circulating system.
(6) You must not use air under pressure when you fill the dip tank or agitate the liquid in the dip tank.
(b) What additional requirements
apply to flow coating? (1) You must use
a direct low-pressure pumping system
or a 10-gallon (38 L) or smaller gravity
tank to supply the paint for flow coating. In case of fire, an approved heatactuated device must shut down the
pumping system.
(2) You must ensure that the piping
is substantial and rigidly supported.
(c) What additional requirements
apply to roll coating, roll spreading, or
roll impregnating? When these operations use a flammable or combustible
liquid that has a flashpoint below 140
°F (60 °C), you must prevent sparking
of static electricity by:
(1) Bonding and grounding all metallic parts (including rotating parts) and
installing static collectors; or
(2) Maintaining a conductive atmosphere (for example, one with a high relative humidity) in the vapor area.
(d) What additional requirements
apply to vapor degreasing tanks? (1)
You must ensure that the condenser or
vapor-level thermostat keeps the vapor
level at least 36 inches (91 cm) or onehalf the tank width, whichever is less,
below the top of the vapor degreasing
tank.
(2) When you use gas as a fuel to heat
the tank liquid, you must prevent solvent vapors from entering the air-fuel

§ 1910.126

mixture. To do this, you must make
the combustion chamber airtight (except for the flue opening).
(3) The flue must be made of corrosion-resistant material, and it must extend to the outside. You must install a
draft diverter if mechanical exhaust is
used on the flue.
(4) You must not allow the temperature of the heating element to cause a
solvent or mixture to decompose or to
generate an excessive amount of vapor.
(e) What additional requirements
apply to cyanide tanks? You must ensure that cyanide tanks have a dike or
other safeguard to prevent cyanide
from mixing with an acid if a dip tank
fails.
(f) What additional requirements
apply to spray cleaning tanks and
spray degreasing tanks? If you spray a
liquid in the air over an open-surface
cleaning or degreasing tank, you must
control the spraying to the extent feasible by:
(1) Enclosing the spraying operation;
and
(2) Using mechanical ventilation to
provide enough inward air velocity to
prevent the spray from leaving the
vapor area.
(g) What additional requirements
apply to electrostatic paint detearing?
(1) You must use only approved electrostatic equipment in paint-detearing operations. Electrodes in such equipment
must be substantial, rigidly supported,
permanently located, and effectively
insulated from ground by nonporous,
noncombustible, clean, dry insulators.
(2) You must use conveyors to support any goods being paint deteared.
(3) You must ensure that goods being
electrostatically deteared are not
manually handled.
(4) Between goods being electrostatically deteared and the electrodes
or conductors of the electrostatic
equipment, you must maintain a minimum distance of twice the sparking
distance. This minimum distance must
be displayed conspicuously on a sign
located near the equipment.
(5) You must ensure that the electrostatic equipment has automatic controls that immediately disconnect the
power supply to the high-voltage transformer and signal the operator if:

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§ 1910.132

29 CFR Ch. XVII (7–1–09 Edition)

(i) Ventilation or the conveyors fail
to operate;
(ii) A ground (or imminent ground)
occurs anywhere in the high-voltage
system; or
(iii) Goods being electrostatically
deteared come within twice the sparking distance of the electrodes or conductors of the equipment.
(6) You must use fences, rails, or
guards, made of conducting material
and adequately grounded, to separate
paint-detearing operations from storage areas and from personnel.
(7) To protect paint-detearing operations from fire, you must have in
place:
(i) Automatic sprinklers; or
(ii) An automatic fire-extinguishing
system conforming to the requirements
of subpart L of this part.
(8) To collect paint deposits, you
must:
(i) Provide drip plates and screens;
and
(ii) Clean these plates and screens in
a safe location.

equipment, the employer shall be responsible to assure its adequacy, including proper maintenance, and sanitation of such equipment.
(c) Design. All personal protective
equipment shall be of safe design and
construction for the work to be performed.
(d) Hazard assessment and equipment
selection. (1) The employer shall assess
the workplace to determine if hazards
are present, or are likely to be present,
which necessitate the use of personal
protective equipment (PPE). If such
hazards are present, or likely to be
present, the employer shall:
(i) Select, and have each affected employee use, the types of PPE that will
protect the affected employee from the
hazards identified in the hazard assessment;
(ii) Communicate selection decisions
to each affected employee; and,
(iii) Select PPE that properly fits
each affected employee.

Subpart I—Personal Protective
Equipment

(2) The employer shall verify that the
required workplace hazard assessment
has been performed through a written
certification that identifies the workplace evaluated; the person certifying
that the evaluation has been performed; the date(s) of the hazard assessment; and, which identifies the
document as a certification of hazard
assessment.
(e) Defective and damaged equipment.
Defective or damaged personal protective equipment shall not be used.
(f) Training. (1) The employer shall
provide training to each employee who
is required by this section to use PPE.
Each such employee shall be trained to
know at least the following:
(i) When PPE is necessary;
(ii) What PPE is necessary;
(iii) How to properly don, doff, adjust, and wear PPE;
(iv) The limitations of the PPE; and,
(v) The proper care, maintenance,
useful life and disposal of the PPE.
(2) Each affected employee shall demonstrate an understanding of the training specified in paragraph (f)(1) of this
section, and the ability to use PPE
properly, before being allowed to perform work requiring the use of PPE.

cprice-sewell on DSKDVH8Z91PROD with CFR

AUTHORITY: Sections 4, 6, and 8 of the Occupational Safety and Health Act of 1970 (29
U.S.C. 653, 655, and 657); Secretary of Labor’s
Order No. 12–71 (36 FR 8754), 8–76 (41 FR
25059), 9–83 (48 FR 35736), 1–90 (55 FR 9033), 6–
96 (62 FR 111), 3–2000 (65 FR 50017), 5–2002 (67
FR 65008), or 5–2007 (72 FR 31160), as applicable, and 29 CFR Part 1911.

§ 1910.132 General requirements.
(a) Application. Protective equipment,
including personal protective equipment for eyes, face, head, and extremities, protective clothing, respiratory
devices, and protective shields and barriers, shall be provided, used, and
maintained in a sanitary and reliable
condition wherever it is necessary by
reason of hazards of processes or environment, chemical hazards, radiological hazards, or mechanical irritants encountered in a manner capable
of causing injury or impairment in the
function of any part of the body
through absorption, inhalation or
physical contact.
(b) Employee-owned equipment. Where
employees provide their own protective

NOTE: Non-mandatory Appendix B contains
an example of procedures that would comply
with the requirement for a hazard assessment.

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