46 C.F.R. § 108.495 Spare charges.
Title 46 - Shipping
(a) Each unit must have enough spare charges for 50 percent of the hand portable fire extinguishers required under Table 108.495(a) of this subpart that are rechargeable by personnel on the unit. (b) If a unit has extinguishers that cannot be recharged by personnel on unit, it must also have at least one spare extinguisher for each classification and variety of those extinguishers.
Title 46: Shipping
PART 108—DESIGN AND EQUIPMENT
Subpart D—Fire Extinguishing Systems
Hand Portable and Semiportable Fire Extinguishing Systems
§ 108.495 Spare charges.
Table 108.495(a)_Hand Portable Fire Extinguishers and Semiportable Fire- Extinguishing Systems------------------------------------------------------------------------ Classification Space (see table Quantity and location 108.495(b))------------------------------------------------------------------------ safety areasWheelhouse and control room... C-I............. 2 in vicinity of exit.Stairway and elevator ................. None required. enclosure.Corridors..................... A-II............ 1 in each corridor not more than 150 ft (45 m) apart. (May be located in stairways.)Lifeboat embarkation and ................. None required. lowering stations.Radio room.................... C-I............. 2 in vicinity of exit. accommodationsStaterooms, toilet spaces, ................. None required. public spaces, offices, lockers, small storerooms, and pantries, open decks, and similar spaces. service spacesGalleys....................... B-II or C-II.... 1 for each 2,500 ft \2\ (232 m \2\ ) or fraction thereof suitable for hazards involved.Paint and lamp rooms.......... B-II............ 1 outside each room in vicinity of exit.Storerooms.................... A-II............ 1 for each 2,500 ft \2\ (232 m \2\ ) or fraction thereof located in vicinity of exits, either inside or outside the spaces.Work shop and similar spaces.. C-II............ 1 outside each space in vicinity of an exit. machinery spacesOil-fired boilers: Spaces B-II............ 2 required in each containing oil-fired boilers, B-V.............. space. either main or auxiliary, or 1 required in each their fuel oil units. space.Internal combustion or gas B-II............ 1 for each 1,000 turbine propelling machinery brake horsepower but spaces. not less than 2 nor more than 6 in each space. B-III........... 1 required in each space. See note 1.Motors or generators of C-II............ 1 for each motor or electric propelling machinery generator. that do not have an enclosed ventilating system.Motors and generators of ................. None required. electric propelling machinery that have enclosed ventilating systems. auxiliary spacesInternal combustion engines or B-II............ Outside the space gas turbine. containing engines or turbines in vicinity of exit.Electric emergency motors or C-II............ 1 outside the space generators. containing motors or generators in vicinity of exit.Steam driven auxiliary ................. None required. machinery.Trunks to machinery spaces.... ................. Do.Fuel tanks.................... ................. Do. miscellaneous areasHelicopter landing decks...... B-V............. 1 at each access route.Helicopter fueling facilities. B-IV............ 1 at each fuel transfer facility. See note 2.Drill floor................... C-II............ 2 required.Cranes with internal B-II............ 1 required. combustion engines.------------------------------------------------------------------------Notes: 1. Not required where a fixed gas extinguishing system is installed.2. Not required where a fixed foam system is installed in accordance with § 108.489 of this subpart.
Table 108.495(b)-------------------------------------------------------------------------------------------------------------------------------------------------------- Classification: Water liters Foam liters Carbon dioxide Dry chemical Halon 1211 Type and size (gallons) (gallons) kilograms (pounds) kilograms (pounds) kilograms (pounds)--------------------------------------------------------------------------------------------------------------------------------------------------------A............................... II................ 9.5 (2\1/2\)...... 9.5 (2\1/2\)...... .................. 2.25 (5) \3\......B............................... I................. .................. 4.7 (1\1/4\)...... 1.8 (4)........... 0.9 (2)........... 1.1 (2\1/2\)B............................... II................ .................. 9.5 (2\1/2\)...... 6.7 (15).......... 4.5 (10).......... 4.5 (10) \5\B............................... III............... .................. 45.5 (12)......... 15.8 (35)......... 9.0 (20)..........B............................... IV................ .................. 7.6 (20).......... 22.5 (50)......... 13.5 (30).........B............................... V................. .................. 152 (40).......... 45 (100) \4\...... 22.5 (50) \4\.....C............................... I................. .................. .................. 1.8 (4)........... 0.9 (2)...........C............................... II................ .................. .................. 6.7 (15).......... 4.5 (10)..........C............................... III............... .................. .................. 15.8 (35)......... 9.0 (20)..........C............................... IV................ .................. .................. 22.5 (50)......... 13.5 (30).........--------------------------------------------------------------------------------------------------------------------------------------------------------Note: 1. Fire extinguishers are designed by type as follows: (a) ``A'' for fires in combustible materials such as wood. (b) ``B'' for fires in flammable liquids and greases. (c) ``C'' for fires in electrical equipment.2. Fire extinguishers are designated by size where size ``I'' is the smallest and size ``V'' is the largest. Sizes ``I'' and ``II'' are hand-portable extinguishers and sizes ``III'', ``IV'', and ``V'' are semiportable extinguishers.3. Must be specifically approved as a type A, B, or C extinguisher.4. For outside use, double the quantity of agent that must be carried.5. For outside use only.
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