(1) Hinged covers of hatchways, manholes and other
openings shall be protected against accidental closing. In particular,
heavy covers on escape hatches shall be equipped with counterweights,
and so constructed as to be capable of being opened from each side
of the cover.
(2) Dimensions of access hatches shall not be
less than 600 mm by 600 mm or 600 mm diameter.
(3) Where practicable, hand-holds shall be provided
above the level of the deck over escape openings.