6 A flooding detection system should be fitted
in all watertight spaces below the bulkhead deck that:
-
.1 have a volume, in cubic metres (m3),
that is more than the ship’s moulded displacement per centimetre
(cm) immersion at deepest subdivision draught; or
-
.2 have a volume more than 30m3,
whichever is the greater.
7 Any watertight spaces that are separately equipped
with a liquid level monitoring system (such as fresh water, ballast
water, fuel, etc.), with an indicator panel or other means of monitoring
at the navigation bridge (and the safety centre if located in a separate
space from the navigation bridge), are excluded from these requirements.