|369C||Title:||MERCHANT SHIPPING (INSTRUCTIONS TO SURVEYORS) (PASSENGER SHIPS) REGULATIONS||Gazette Number:|
|Regulation:||27||Heading:||Pressure tests of fore peak, double bottoms, inner skins, etc.||Version Date:||30/06/1997|
(1) The fore peak is to be tested by filling it with water up to the level of the deepest subdivision loadline.
(2) Double bottoms, duct keels and inner skins are to be subjected to a head of water up to the margin line.
(3) Tanks which are intended to hold liquids and which form part of the subdivision of the ship are to be subjected to a head of water up to the deepest subdivision loadline or to a head corresponding to two-thirds of the depth from the keel to the margin line in way of the tanks, whichever is the greater.
These tests are for the purpose of ensuring that the subdivision structural arrangements are watertight, and are not to be regarded as a test of the fitness of any compartment for the storage of oil fuel or for other special purposes for which a test of a superior character may be required, depending on the height to which the liquid has access in the tank or its connections. (See paragraph 259).
(4) If a ship under construction is not intended to carry liquid fuel in the double bottoms, the surveyor need not necessarily witness the tests of these compartments, unless the ship is not classed. If, however, the double bottoms are to be used for liquid fuel, the surveyor is to witness the tests whether the ship is classed or not.