SOLAS REGULATION II-2/4
Application of materials other than steel on engine, turbine and gearbox
installations
Materials other than steel may be assessed in relation to the risk of fire associated
with the component and its installation. The use of materials other than steel is
considered acceptable for the following applications:
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.1 internal pipes which cannot cause any release of flammable fluid
onto the machinery or into the machinery space in case of failure; or
-
.2 components that are only subject to liquid spray on the inside when
the machinery is running, such as machinery covers, rocker box covers, camshaft
end covers, inspection plates and sump tanks. It is a condition that the pressure
inside these components and all the elements contained therein is less than 0.18
N/mm2 and that wet sumps have a volume not exceeding 100 litres; or
-
.3 components attached to machinery which satisfy fire test criteria
according to standard ISO 19921:2005/19922:2005 or other standards acceptable to
the Administration, and which retain mechanical properties adequate for the
intended installation.
SOLAS REGULATION II-2/4.5.7.3.1
Arrangements for fixed hydrocarbon gas detection systems in double-hull and
double-bottom spaces of oil tankers
1 The term "cargo tanks" in the phrase "spaces adjacent to the cargo tanks" includes
slop tanks except those arranged for the storage of oily water only.
2 The term "spaces" in the phrase "spaces under the bulkhead deck adjacent to cargo
tanks" includes dry compartments such as ballast pump-rooms and bow thruster rooms and
any tanks such as freshwater tanks, but excludes fuel oil tanks.
3 The term "adjacent" in the phrase "adjacent to the cargo tanks" includes ballast
tanks, void spaces, other tanks or compartments located below the bulkhead deck located
adjacent to cargo tanks and includes any spaces or tanks located below the bulkhead deck
which form a cruciform (corner to corner) contact with the cargo tanks.
SOLAS REGULATION II-2/9.7.1.1
Non-combustible material as "steel or equivalent" for ventilation ducts
With respect to SOLAS regulation II-2/9.7.1.1, a ventilation duct made of material other
than steel may be considered equivalent to a ventilation duct made of steel, provided
the material is non-combustible and has passed a standard fire test in accordance with
annex 1 to part 3 of the 2010 FTP Code as a non-load bearing structure for 30 minutes,
following the requirements for testing "B" class divisions.