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National
United States Regulations
33 CFR PART 145—FIRE-FIGHTING EQUIPMENT







Title 33: Navigation and Navigable Waters

PART 145—FIRE-FIGHTING EQUIPMENT



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Authority: Sec. 633, 63 Stat. 545; sec. 4, 67 Stat. 462; 14 U.S.C. 633; 43 U.S.C. 1333.

§ 145.01 Portable and semi-portable fire extinguishers.
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On all manned platforms and on all unmanned platforms where crews are continuously working on a 24-hour basis, approved type portable fire extinguishers and/or approved type semi-portable fire extinguishers shall be installed and maintained. On all unmanned platforms where crews are not continuously working on a 24-hour basis, approved type portable fire extinguishers and/or approved type semi-portable fire extinguishers are required to be installed and maintained only when crews are working thereon.

[CGFR 56–4, 21 FR 903, Feb. 9, 1956]

§ 145.05 Classification of fire extinguishers.
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(a) Portable and semi-portable extinguishers shall be classified by a combination letter and number symbol. The letter indicating the type of fire which the unit could be expected to extinguish, and the number indicating the relative size of the unit.

(b) The types of fire will be designated as follows:

(1) “A” for fires in ordinary combustible materials where the quenching and cooling effects of quantities of water, or solutions containing large percentages of water, are of first importance.

(2) “B” for fires in flammable liquids, greases, etc., where a blanketing effect is essential.

(3) “C” for fires in electrical equipment where the use of a non-conducting extinguishing agent is of first importance.

(c) The number designations for size will start with “I” for the smallest to “V” for the largest. Sizes I and II are considered portable extinguishers. Sizes III, IV and V are considered semi-portable extinguishers which shall 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 145.05(c).


Table 145.05(c)_Portable and Semiportable Extinguishers
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Classification Soda-
-------------------------------------------------------------------------- acid Carbon Dry
and Foam, dioxide, chemical,
Type Size water, gallons pounds pounds
gallons
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A......................................... II........................... 2\1/2\ 2\1/2\
B......................................... II........................... ....... 2\1/2\ 15 10
C......................................... II........................... ....... ....... 15 10
B......................................... V............................ ....... 40 100 50
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(d) All portable and semi-portable extinguishers shall have permanently attached thereto a durable name plate giving the name of the item, the rated capacity in gallons or pounds, the name and address of the person or firm for whom approved, and the identifying mark of the actual manufacturer.

[CGFR 56–4, 21 FR 903, Feb. 9, 1956, as amended by CGFR 58–28, 23 FR 6880, Sept. 6, 1958]

§ 145.10 Locations and number of fire extinguishers required.
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(a) Approved portable and semi-portable extinguishers shall be installed in accordance with Table 145.10(a).

(b) Semi-portable extinguishers shall be located in the open so as to be readily seen.


Table 145.10(a)_Portable and Semi-Portable Extinguishers
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Space Classification Quantity and location
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safety areas
Communicating corridors.................. A-II........................ 1 in each main corridor not more than
150 feet apart. (May be located in
stairways.)
Radio room............................... C-II........................ 1 in vicinity of exit.
accommodations
Sleeping accommodations.................. A-II........................ 1 in each sleeping accommodation space.
(Where occupied by more than 4
persons.)
services spaces
Galleys.................................. B-II or C-II................ 1 for each 2,500 square feet or
fraction thereof for hazards involved.
Storerooms............................... A-II........................ 1 for each 2,500 square feet or
fraction thereof located in vicinity
of exits, either inside or outside of
spaces.
machinery spaces
Gas-fired boilers........................ B-II (CO2 or dry chemical).. 2 required.
Gas-fired boilers........................ B-V......................... 1 required.\1\
Oil-fired boilers........................ B-II........................ 2 required.
Oil-fired boilers........................ B-V......................... 2 required.\1\
Internal combustion or gas turbine B-II........................ 1 for each engine.\2\
engines.
Electric motors or generators of open C-II........................ 1 for each 2 motors or generators.\3\
type.
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\1\ Not required where a fixed carbon dioxide system is installed.
\2\ When installation is on weather deck or open to atmosphere at all times 1 B-II for each three engines is
allowable.
\3\ Small electrical appliances, such as fans, etc., shall not be counted or used as basis for determining
number of extinguishers required.


[CGFR 56–4, 21 FR 903, Feb. 9, 1956]