1.1 Under the provisions of the International Code of
Safety for High Speed Craft (HSC Code) (resolution MSC.36(63)), constructions for
use in craft should have fire-resisting properties to the satisfaction of, and be
approved by, the Administration. In this context "fire-resisting property" is the
ability of the construction to insulate/protect an area from the influence of a fire
in an adjoining area by having separating performance during a fire. Such
constructions are fire-resisting bulkheads, decks ceilings, linings and doors.
1.1.1 Fire-resisting divisions for moderate
fire hazard are classified as "fire-resisting divisions 30".
1.1.2 Fire-resisting divisions for major fire hazard are
classified as "fire-resisting divisions 60".
1.2 The classification should be expressed in the form of, for example,
"Load bearing fire-resisting deck 60" and "Non-load bearing fire-resisting bulkhead
30", i.e. including the qualification on orientation of the division together with a
statement if the division in question is evaluated as load bearing or as non-load
bearing.
1.3 Testing of fire-resisting
divisions and reporting should generally be in accordance with the requirements
given in resolution A.754(18). Where additional interpretation, adaption and/or
supplementary requirements may be necessary, these are detailed in this resolution.
1.4 The test should continue for a
minimum of 30 min ofr fire-resisting divisions 30, or 60 min for fire-resisting
divisions 60, or for an intermediate fire protection time when allowed in accordance
with paragraph 7.4.1.1. of the HSC Code.
1.5 The following performance criteria for insulation and integrity
should be fulfilled within the classification period (see 1.4):
.1
Insulation.1.1 the average unexposed face temperature rise
should not be more than 140°C, nad the temperature rise recorded by any of
the individual unexposed face thermocouple should not be more than 180°C; and
.2 Integrity.2.1 there should be no flaming on the unexposed face;
.2.2 there should be no ignition, i.e.
flaming or glowing, of the cotton wool pad; and
.2.3 it should not be possible to enter the gap gauges into any opening
in the specimen.
1.6 In this resolution, testing of fire-resisting divisions
is described in three separate parts:
- -
non-load bearing fire-resisting divisions;
- - load bearing fire-resisting divisions having a structural metal
core as presupposed in resolution a.754(18) for "a"class divisions; and - other
load bearing fire-resisting divisions;