H 34
CAP. 281]
Merchant Shipping (Fire Appliances)
Regulations.
[1969 Ed.
[Subsidiary]
(2) Each cylinder shall be provided with an internal discharge tube and a valve to release the gas.
(3) The extinguisher referred to in paragraph (1) shall be provided with a discharge hose which shall be reinforced so as to withstand a pressure of at least 1,800 pounds per square inch when the necessary couplings are fitted.
(4) The bore of the discharge hose referred to in paragraph (3) shall not be less than the sizes respectively set forth in the following table-
Capacity of extinguisher. 35 lb. 100 lb. Minimum bore of discharge hose. ¼ inch. ½ inch.(5) The discharge hose shall be provided with a horn which shall be of electrically non-conducting material and of a design which will reduce the velocity of the gas discharged.
(6) The metal part of the operating handle shall be suitably sheathed to protect the hands of the operator from extreme cold.
(7) At any temperature between 60°F. (15°C.) and 65°F. (18°C.) inclusive, the extinguisher shall discharge gas at such a rate that carbon dioxide equal in weight to ¾ of the capacity of the container will be discharged in the periods respectively set forth in the following table-
Capacity of extinguisher. 35 lb. 100 lb. Period. 30 to 45 seconds. 60 to 90 seconds.(8) The outside of the extinguisher shall be clearly and permanently marked in accordance with Section Four of the specification of the British Standards Institution Number B.S. 3326: 1960.
1.
FOURTH SCHEDULE.
BREATHING APPARATUS.
[reg. 42.]
Every breathing apparatus provided in compliance with these regulations may be either-
(a) a smoke helmet or a smoke mask, each of which shall be provided with an air pump or bellows and an air hose; or
(b) a self-contained breathing apparatus.
Smoke helmet and smoke mask.
2. (1) Every smoke helmet or smoke mask provided in compliance with these regulations shall be provided with a hose for the supply of air from the outside atmosphere.
(2) An air pump or bellows shall be provided which shall be suitable for pumping air through the hose referred to in sub-paragraph (1).