Technical Service
IMO_A.754(18) Recommendation on fire resistance tests for ''A'', ''B'' and ''F'' class divisions
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Approval of constructions will be restricted to the orientation in which they have been tested, therefore bulkheads, linings and doors should be tested vertically mounted and decks and ceilings should be tested horizontally mounted. It is only necessary to test decks with the underside exposed to the heating conditions, and "B" and "F" class ceilings and linings are required only to be tested from the side incorporating the ceiling or the lining.
