Division .3 F1

‘ A ’ class divisions are those divisions formed by bulkheads and decks which comply with the following:

1. .1

   they shall be constructed of steel or other equivalent material;

2. .2

   they shall be suitably stiffened;

3. .3

   they shall be so constructed as to be capable of preventing the passage of smoke and flame to the end of the one-hour standard fire test;

4. .4

   they shall be insulated with approved non-combustible materials such that the average temperature of the unexposed side will not rise more than 140 °C above the original temperature, nor will the temperature, at any one point, including any joint, rise more than 180 °C above the original temperature, within the time listed below:

   class ‘ A-60 ’	60 minutes
   class ‘ A-30 ’	30 minutes
   class ‘ A-15 ’	15 minutes
   class ‘ A-0 ’	0 minutes

5. .5

   The Administration of the flag State shall require a test of a prototype bulkhead or deck to ensure that it meets the above requirements for integrity and temperature rise in accordance with the IMO Resolution A.754(18).

   For class B, C and D ships constructed on or after 1 January 2003 , ‘ IMO Resolution A.754(18) ’ shall read ‘ Fire Test Procedures Code ’ .