StatA

§ 149.406

33 CFR Ch. I (7–1–12 Edition)

combination letter-and-number symbol
in which the letter indicates the type
of fire that the extinguisher is designed
to extinguish, and the number indicates the relative size of the extinguisher.
(b) The letter designations are as follows:
(1) ‘‘A’’ for fires of ordinary combustible materials where the quenching
and cooling effects of water, or solutions containing large percentages of
water, are of primary importance;
(2) ‘‘B’’ for fires of flammable liquids,
greases, or other thick flammable substances where a blanketing effect is essential; and

(3) ‘‘C’’ for fires in electrical equipment where the use of a non-conducting extinguishing agent is of primary importance.
(c) The number designations for size
range from ‘‘I’’ for the smallest extinguisher to ‘‘V’’ for the largest. Sizes I
and II are portable extinguishers. Sizes
III, IV, and V are semi-portable extinguishers that must be fitted with suitable hose and nozzle, or other practicable means, so that all portions of
the space concerned may be covered.
Examples of size graduations for some
of the typical portable and semi-portable extinguishers are set forth in table
149.405.

TABLE 149.405—PORTABLE AND SEMI-PORTABLE EXTINGUISHERS
Classification type-size

Foam liters
(gallons)

Carbon dioxide
kilograms
(pounds)

A–II ..............................................................................................................
B–II ..............................................................................................................
C–II ..............................................................................................................
B–IV .............................................................................................................
B–V ..............................................................................................................

9.5 (2.5)
9.5 (2.5)
..........................
7.6 (20)
15.2 (40)

..........................
6.7 (15)
6.7 (15)
22.5 (50)
2 45 (100)

Dry chemical
kilograms
(pounds)
1 2.25

4.5
4.5
13.5
2 22.5

(5)
(10)
(10)
(30)
(50)

Notes:
1 Must be specifically approved as a type ‘‘A,’’ ‘‘B,’’ or ‘‘C’’ extinguisher.
2 For outside use, double the quantity of agent that must be carried.

§ 149.406 What are the approval requirements for a fire extinguisher?
All portable and semi-portable fire
extinguishers must be of an approved
type under 46 CFR part 162, subparts
162.028 and 162.039, respectively.
§ 149.407 Must fire extinguishers be on
the deepwater port at all times?
(a) The fire extinguishers required by
§ 149.409 of this subpart must be on all
manned deepwater ports at all times.
(b) The fire extinguishers required by
§ 149.409 of this part need be on unmanned deepwater ports only when
personnel are working on the deep-

water port during cargo transfer operations, or performing maintenance duties.
§ 149.408 What are the maintenance requirements for fire extinguishers?
All fire extinguishers must be maintained in good working order and serviced annually in accordance with 46
CFR 107.235.
§ 149.409 How many fire extinguishers
are needed?
Each particular location must have
the number of fire extinguishers required by table 149.409.

TABLE 149.409—PORTABLE AND SEMI-PORTABLE EXTINGUISHERS, MINIMUM QUANTITY AND
LOCATION

wreier-aviles on DSK5TPTVN1PROD with CFR

Space
(a) Safety Areas:
(1) Communicating corridors.
(2) Radio room ...............
(b) Accommodation Spaces:
(1) Sleeping quarters .....
(c) Service Spaces:
(1) Galleys ......................

Classification

Minimum quantity and location

A–II ............................
C–II ............................

One in each main corridor or stairway not more than 150 feet
apart.
One outside or near each radio room exit.

A–II ............................

One in each sleeping space that fits more than four persons.

B–II or CII ..................

One for each 2,500 square feet or fraction thereof, for hazards involved.

184

VerDate Mar<15>2010

11:58 Aug 31, 2012

Jkt 226133

PO 00000

Frm 00194

Fmt 8010

Sfmt 8010

Y:\SGML\226133.XXX

226133