Regulation 47 - Doors in fire-resisting divisions
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Regulation 47 - Doors in fire-resisting divisions

Parent topic: Part C - Fire Safety Measures for Cargo Ships

47.1 Doors in divisions of a higher standard

 Where required divisions are replaced by divisions of a higher standard, the door need only conform to the required division.

47.3 Air balance ducts below sanitary units leading through corridor bulkheads and ventilation openings in doors of some special rooms

  • 1 Alternatively, a non-combustible air balance duct arrangement between a cabin and a corridor which is located below the sanitary unit leading through the corridor bulkhead is permitted in order to achieve air balance of supply and exhaust air for the cabin under the condition that the cross-sectional area of the duct does not exceed 0.05 m2.

  • 2 Ventilation openings may also be permitted in "B" class doors leading to lavatories, offices, pantries, lockers and store rooms.

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