46 C.F.R. Subpart B—Portable and Semiportable Fire Extinguishers
Title 46 - Shipping
(a) Each portable fire extinguisher and semiportable fire extinguisher is classified by a symbol combining letter and number. The letter indicates the type of fire that the unit should extinguish; the number indicates the relative size of the unit. (b) The types of fire are the following: (1) “A”—fires in ordinary combustible materials, where the quenching and cooling effect of quantities of either water or solutions containing large percentages of water is essential. (2) “B”—fires in flammable liquids, greases, and the like, where the blanketing effect of a smothering-agent is essential. (3) “C”—fires in electrical equipment, where the use of nonconducting extinguishing-agent is essential. (c) The sizes of units run from “I” for the smallest to “V” for the largest. Sizes I and II are portable fire extinguishers; sizes III, IV, and V, which exceed 25 kilograms (55 pounds) in gross weight, are semiportable fire extinguishers and must be fitted with suitable hose and nozzle or other practicable means to cover any part of the space involved. Typical portable and semiportable fire extinguishers are set forth by Table 132.210 of this section. (d) Each portable fire extinguisher and semiportable fire extinguisher must have permanently attached an identification plate that gives the name of the extinguishing-agent, the capacity of the agent in liters (gallons) or kilograms (pounds), the classification of the extinguisher expressed by letter or letters indicating the type or types of fire for which it is intended, and the identifying mark of the manufacturer. (a) Each portable fire extinguisher approved under subpart 162.028 of this chapter and each semiportable fire extinguisher approved under subpart 162.039 of this chapter must be installed in compliance with Table 132.220 of this section. The placement of each extinguisher must satisfy the cognizant OCMI, who may also deem added extinguishers necessary for the proper protection of the vessel. (b) Each semiportable fire extinguisher must be mounted or otherwise placed in the open so as to be readily visible. (c) Except as provided by paragraph (d) of this section, each portable fire extinguisher must be mounted or otherwise placed in the open or behind glass so as to be readily visible. (d) A portable fire extinguisher may be mounted or otherwise placed in an enclosure together with the fire hose, if the enclosure is marked in compliance with §131.830 of this subchapter. (e) Each portable fire extinguisher and its station must be numbered to comply with §131.835 of this subchapter. (f) No portable or semiportable fire extinguisher with a nameplate indicating that it needs protection from freezing may be mounted or otherwise placed where freezing temperatures are foreseeable. (a) Except as provided by paragraph (b) or (c) of this section, each vessel must carry spare charges for 50 percent of the portable fire extinguishers required by §132.220 of this subpart. (b) Rather than comply with paragraph (a) of this section, a vessel may carry one extra portable extinguisher of the same classification. (c) If extinguishers of a particular classification cannot be readily recharged by crew members, a vessel must—rather than comply with paragraph (a) of this section—carry one more extinguisher of that classification. (d) Each spare charge must be packaged so as to minimize the hazards to personnel recharging the extinguishers. The frame or support of each semiportable fire extinguisher of size III, IV, or V must be secured to prevent the extinguisher from shifting in heavy weather.
Title 46: Shipping
PART 132—FIRE-PROTECTION EQUIPMENT
Subpart B—Portable and Semiportable Fire Extinguishers
§ 132.210 Classification.
Table 132.210-------------------------------------------------------------------------------------------------------------------------------------------------------- Classification Halon 1211, 1301, and------------------------------------------------------------ 1211-1301 mixtures Foam, liters Carbon dioxide, kgs. Dry chemicals, kgs. Type Size kgs. (lbs.) (gallons) (lbs.) (lbs.)--------------------------------------------------------------------------------------------------------------------------------------------------------A.................................. II.................... ..................... 9.46 (2\1/2\)........ ..................... ......................B.................................. I..................... 1.13 (2\1/2\)........ ..................... 1.8 (4).............. 0.91 (2)B.................................. II.................... 4.5 (10)............. 9.46 (2\1/2\)........ 6.8 (15)............. 4.5 (10)B.................................. III................... ..................... 45.4 (12)............ 15.9 (35)............ 9 (20)B.................................. IV.................... ..................... 75.7 (20)............ 22.6 (50)............ 13.6 (30)B.................................. V..................... ..................... 151.4 (40)........... 453 (100)............ 22.6 (50)C.................................. I..................... 1.13 (2\1/2\)........ ..................... 1.8 (4).............. .91 (2)C.................................. II.................... 4.5 (10)............. ..................... 6.8 (15)............. 4.5 (10)--------------------------------------------------------------------------------------------------------------------------------------------------------
§ 132.220 Installation.
Table 132.220_Carriage of Portable and Semiportable Fire Extinguishers---------------------------------------------------------------------------------------------------------------- Classification (see § Space 132.210) Number and placement---------------------------------------------------------------------------------------------------------------- Safety areas: Communicating passageways A-II....................... 1. In each main passageway, not more than 45.7 meters (150 feet) apart (permissible in stairways).Pilothouse............................... C-I........................ 2. In vicinity of exit.Service spaces: Galleys.................. B-II or C-11............... 1. For each 230 square meters (2,500 feet\2\) or fraction thereof, suitable for hazards involved.Paint lockers............................ B-II....................... 1. Outside space, in vicinity of exit.Accessible baggage and storerooms........ A-II....................... 1. For each 230 square meters (2,500 feet\2\) or fraction thereof, located in vicinity of exits, either inside or outside spaces.Work shops and similar spaces............ A-II....................... 1. Outside space in vicinity of exit.Machinery spaces: Internal-combustion B-II....................... 1. For each 1,000 brake horsepower, but propulsion-machinery. not fewer than 2 nor more than 6. B-III...................... 1. Required. (\1\), (\2\)Electric propulsion motors or generators C-II....................... 1. For each propulsion motor or of open type. generator unit.Auxiliary spaces: Internal combustion.... B-II....................... 1. Outside space in vicinity of exit. (\2\)Electric motors and emergency generators. C-II....................... 1. Outside space in vicinity of exit. (\2\)----------------------------------------------------------------------------------------------------------------(\1\) Not required where a fixed gaseous fire-extinguishing system is installed.(\2\) Not required on vessels of less than 300 gross tons.
§ 132.230 Spare charges.
§ 132.240 Stowage of semiportable fire extinguishers.
