Appendix 4 – Continuous “B” Class Divisions
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Statutory Documents - IMO Publications and Documents - International Codes - 2010 FTP Code – International Code for Application of Fire Test Procedures, 20101 – Resolution MSC.307(88) - Annex 1 – Fire Test Procedures - Part 3 – Test for “A”, “B” and “F” Class Divisions - Appendix 4 – Continuous “B” Class Divisions

Appendix 4 – Continuous “B” Class Divisions

Parent topic: Part 3 – Test for “A”, “B” and “F” Class Divisions

1 Scope

  1.1 This appendix specifies the procedure for testing linings and ceilings for verifying that they are "continuous 'B' class linings" and "continuous 'B' class ceilings" and for evaluating full constructions to be "continuous 'B' class constructions".

  1.2 This procedure is an optional requirement and may be requested by some Administrations for continuous "B" class divisions.

2 Test Procedures and Evaluation

  2.1 The linings, ceilings and constructions should be evaluated in accordance with this part using the arrangements described below.

  2.2 The ceilings should be tested in accordance with paragraph 2.8 of the appendix 1 except that the ceiling should be mounted on the horizontal furnace so that at least 150 mm high "B" class bulkheads are mounted on the furnace and the ceiling is fixed to these partial bulkheads by using the joining method as is intended to be used in practice. Such ceilings and the joining methods should be evaluated as required for ceilings in accordance with appendix 1 of this part and accordingly they should be classified as "continuous 'B' ("B-0" or "B-15", as applicable) class ceilings".

  2.3 A lining which has been evaluated in accordance with this part to be a "B" ("B-0" or "B-15", as applicable on basis of the lining test) class lining may be considered as forming a "continuous 'B' ("B-0" or "B-15", as applicable) class lining" in conjunction with a "continuous 'B' ("B-0" or "B-15", as applicable) class ceiling" and with the joining method used in the test (see paragraph 2.2 above) without further testing the lining.

  2.4 An enclosed construction installed on an "A" class deck and formed by "continuous 'B' ("B-0" or "B-15", as applicable) class linings" and "continuous 'B' ("B-0" or "B-15", as applicable) class ceiling" should be considered as forming a "continuous 'B' class construction"

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