1969 Ed.]
Merchant Shipping (Fire Appliances) Regulations.
[CAP. 281
H 35
(3) Such hose shall be of the non-collapsing type and shall be sufficient in length to enable the air pump or bellows to be on the open deck in clean air well clear of any hatch or doorway while the wearer of the helmet or mask is in any part of the accommodation, service, cargo or machinery spaces.
(4) Efficient couplings shall be provided if two or more lengths of hose are to be joined in order to reach the aforesaid spaces.
(5) The air inlet to the pump or bellows shall be so protected as to ensure that the supply of air cannot be obstructed.
Self-contained breathing apparatus.
3. (1) Every self-contained breathing apparatus provided in compliance with these regulations shall be of the open circuit compressed air type.
(2) The storage capacity of the compressed air cylinder or cylinders attached to the apparatus and carried by the wearer shall be at least 1,200 litres (42 cubic feet) of free air. The storage cylinders shall be constructed of suitable material and shall be of efficient design and of sufficient strength to withstand with an adequate factor of safety the internal air pressure to which they may be subjected, and each cylinder shall be capable of withstanding a test by hydraulic pressure suitably in excess of the maximum working pressure.
(3) Means shall be provided for the automatic regulation of the air supply to the wearer of the apparatus in accordance with his breathing requirements when he is breathing any volume of free air of up to 85 litres (3 cubic feet) per minute at any time when the pressure in the supply cylinder or cylinders is above 150 pounds per square inch. Means shall be provided for overriding the automatic air supply valve.
(4) A pressure gauge with an anti-bursting orifice shall be incorporated in the high-pressure air supply system to enable the wearer to read directly and easily the pressure of air in the supply cylinder or cylinders.
(5) Means shall be provided for warning the wearer audibly when 80 per centum of the usable capacity of the apparatus has been consumed.
(6) The maximum weight of any such apparatus shall not exceed 35 lb. excluding any life-line and, if they do not form an integral part of the apparatus, any safety belt or harness.
(7) Every self-contained breathing apparatus shall be provided with fully charged spare cylinders having a spare storage capacity of at least 2,400 litres (84 cubic feet) of free air except that-
(a) if the ship is carrying five sets or more of such apparatus the total spare storage capacity of free air shall not be required to exceed 9,600 litres (336 cubic feet); or
(b) if the ship is equipped with means for recharging the air cylinders to full pressure with air free from contamination, the spare storage capacity of the fully charged spare cylinders of each such apparatus shall be of at least 1,200 litres (42 cubic feet) of free air, and the total spare storage capacity of free air provided in the ship shall not be required to exceed 4,800 litres (168 cubic feet).
(8) A servicing and instruction manual shall be kept with each such apparatus.
[Subsidiary]
Page 35
Page 36
1969 Ed.]
Merchant Shipping (Fire Appliances) Regulations.
[CAP. 281
H 35
(3) Such hose shall be of the non-collapsing type and shall be sufficient in length to enable the air pump or bellows to be on the open deck in clean air well clear of any hatch or doorway while the wearer of the helmet or mask is in any part of the accommodation, service, cargo or machinery spaces.
(4) Efficient couplings shall be provided if two or more lengths of hose are to be joined in order to reach the aforesaid spaces.
(5) The air inlet to the pump or bellows shall be so protected as to ensure that the supply of air cannot be obstructed.
Self-contained breathing apparatus.
3. (1) Every self-contained breathing apparatus provided in com- pliance with these regulations shall be of the open circuit compressed air type.
(2) The storage capacity of the compressed air cylinder or cylinders attached to the apparatus and carried by the wearer shall be at least 1.200 litres (42 cubic feet) of free air. The storage cylinders shall be constructed of suitable material and shall be of efficient design and of sufficient strength to withstand with an adequate factor of safety the internal air pressure to which they may be subjected, and each cylinder shall be capable of with- standing a test by hydraulic pressure suitably in excess of the maximum working pressure.
(3) Means shall be provided for the automatic regulation of the air supply to the wearer of the apparatus in accordance with his breathing require- ments when he is breathing any volume of free air of up to 85 litres (3 cubic feet) per minute at any time when the pressure in the supply cylinder or cylinders is above 150 pounds per square inch. Means shall be provided for overriding the automatic air supply valve.
(4) A pressure gauge with an anti-bursting orifice shall be incorporated in the high-pressure air supply system to enable the wearer to read directly and easily the pressure of air in the supply cylinder or cylinders.
(5) Means shall be provided for warning the wearer audibly when 80 per centum of the usable capacity of the apparatus has been consumed.
(6) The maximum weight of any such apparatus shall not exceed 35 lb. excluding any life-line and, if they do not form an integral part of the apparatus, any safety belt or harness.
(7) Every self-contained breathing apparatus shall be provided with fully charged spare cylinders having a spare storage capacity of at least 2,400 litres (84 cubic feet) of free air except that-
(a) if the ship is carrying five sets or more of such apparatus the total spare storage capacity of free air shall not be required to exceed 9,600 litres (336 cubic feet); or
(b) if the ship is equipped with means for recharging the air cylinders to full pressure with air free from contamination, the spare storage capacity of the fully charged spare cylinders of each such apparatus shall be of at least 1,200 litres (42 cubic feet) of free air, and the total spare storage capacity of free air provided in the ship shall not be required to exceed 4,800 litres (168 cubic feet).
(8) A servicing and instruction manual shall be kept with each such apparatus.
[Subsidiary]
Page 35Page 36
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