Regulation 55 Placing of gas cylinders and acetylene generators
No cylinder which contains or has contained oxygen or any inflammable gas or vapour under pressure, and no acetylene generating plant, shall be installed or placed within fifteen feet of any substantial source of heat (including any boiler or furnace when alight) other than the burner or blow-pipe operated from the cylinder or plant.
No such cylinder and no such plant shall be taken below the weather deck in the case of a vessel undergoing repair, or below the topmost completed deck in the case of a vessel under construction, unless it is installed or placed in a part of the vessel which is adequately ventilated to prevent any dangerous concentration of gas or fumes.
It shall be the duty of the persons employed to comply with the foregoing provisions of this Regulation.