Construction
and testing of watertight bulkheads, decks and inner bottoms
(1) In
every ship each transverse and longitudinal watertight subdivision bulkhead
shall be constructed in such a manner that it shall be capable of supporting
the pressure due to the maximum head of water which it might have to sustain in
the event of damage to the ship and the head of water shall be at least up to
the freeboard deck.
(2) Steps
and recesses in the bulkheads shall be watertight and of a strength equivalent
to that of the bulkhead.
(3) Frames
or beams that pass through a watertight deck or bulkhead shall be made
structurally watertight without the use of wood or cement.
(4) Watertight
compartments shall be tested either by flooding or by a hose test at the most
advanced stage of the fitting out of the ship or by other means acceptable to
the Administration, to establish that the watertight bulkheads are effective.
(5) The
forepeak, double bottoms, duct keels and inner skins shall be tested by
flooding with water to the head prescribed in subregulation (1).
(6) Tanks
intended to hold liquids and which form part of the subdivision of the ship
shall be tested by flooding with water to a head corresponding to the deepest
subdivision load line or to two thirds of the depth from the top of the keel to
the freeboard deck whichever is the greater and in no case shall the test head
be less than 0.9 metres above the top of the tank.
(7) The
tests prescribed in this regulation shall not necessarily be regarded as a test
of 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 appropriate.
Requirements for ships constructed on or
after 1 September 1984
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