1 Spaces for storage of the cylinders or tanks
for extinguishing gas should not be used for other purposes. Access
to these spaces should be possible from the open deck; spaces situated
below the deck should be directly accessible by a stairway or ladder
from the open deck. The space should be located no more than one deck
below the open deck.
2 Spaces where the entrance from the open deck
is not provided, or which are located below deck, should be fitted
with mechanical ventilation. The exhaust duct (suction) should lead
to the bottom of the space. Such spaces should be ventilated with
at least 6 air changes per hour.