Fishing Vessel Safety Regulations — 10
mass produced cylindrical gasoline drums having a capacity exceeding 23 L and not exceeding 227 L may be used as fuel tanks without alteration if they (i) have been galvanized inside and out and are constructed of steel plate having a thickness of not less than 1.5 mm, corrugated to give extra strength, and (ii) do not weigh less than 32 kg when empty if they have a capacity of approximately 205 L; (h) a fuel tank having a capacity exceeding 114 L shall be tested hydrostatically, on completion of its construction, to a head of at least 2.44 m above the crown or to the maximum head to which the tank will be subjected, whichever is the greater, and a written statement from the manufacturer shall be provided to the Minister certifying that the hydrostatic test described in this paragraph has been carried out and that no defects were revealed; and (i) seams shall be welded, brazed or double riveted, but soldered joints may be used on a tank having a capacity of not over 114 L if the solder has a melting point of not less than 427°C. (2) A fuel tank that is not separate from the hull of a fishing vessel shall be considered as part of the hull, taking into consideration the strength requirements of the vessel and the possibility of contamination of oil fuel with water, but the standards of construction and testing shall not be less than those set out in this section for a fuel tank that is separate from the hull. (3) Where the capacity of a fuel tank exceeds 114 L, it shall be provided with the following: (a) a filling pipe that (i) is at least 38 mm inch in internal diameter, (ii) leads from the top of the tank to the weatherdeck, the connection through the deck being watertight, (iii) is fitted with a screwed brass plug or cap, and (iv) is made sufficiently flexible to absorb any vibration or sinkage of the tank; and (b) a vent or breather pipe that (i) leads from the top of the tank to a safe height and location above the weather deck and is clear of all openings into the hull or deck house, (ii) has the end covered with wire gauze and turned down through an angle of 180 degrees, (iii) has a weathertight deck connection, (iv) may have two or more vent pipes branching off from the pipe leading to the deck if that pipe is increased in diameter to maintain the required cross sectional area, and (v) shall, for each tank, be, (A) where the only exit for overflow is the vent pipe, not less in internal diameter than the filling pipe, and (B) where the overflow can take place from the filling pipe and the arrangements are such that supply nozzles cannot plug the filling pipe, not less in internal diameter than one-fifth of the internal diameter of the filling pipe. (4) Glass tubing shall not, on a fishing vessel, be used as a gauge glass on a fuel tank that has a capacity of more than 114 L or on any fuel tank that contains fuel having a flashpoint of less than 52°‍C (Pensky-Marten closed cup), but flat glass gauges of a type approved by a product certification body or a marine classification society may be used on any fuel tank if they are fitted with self-closing cocks or valves. (5) Where glass tubing is used as a gauge on a fuel tank on a fishing vessel, the gauge shall be fitted with a cock or valve at the top and at the bottom. (6) Where a drain valve or cock is provided on a fuel tank on a fishing vessel, it shall have a standard screwed outlet that shall be kept plugged with a screwed plug whenever the cock or valve is not in use. (7) The piping from any fuel tank on a fishing vessel shall be fitted at the tank with a valve or cock that is capable of being operated from outside the compartment in which the tank is situated. (8) Where a new or existing fishing vessel is equipped with an oil-fired power boiler for main or auxiliary steam, each valve or cock fitted to a fuel tank shall be so controlled that it is capable of being shut off from a position that is (a) outside the compartment in which the fuel tank is situated; and (b)