Section 3 Access Opening in Superstructure End Bulkheads

301. Closures for access opening

1. The doors provided on access opening in the end bulkhead of enclosed superstructure are to be in compliance with following requirements.

(1) The doors are to be of steel or other equivalent materials and to be permanently and rigidly fit- ted on the bulkhead.

(2) The doors are to be rigidly constructed, equivalent strength to that of intact bulkhead and of watertight when closed

(3) The means for ensuring weathertightness are to be composed of gaskets and clamping devices

or other equivalents and to be permanently fitted

(4) The doors are to be operated from the both side

to the bulkhead or the doors. of the bulkhead.

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(5) The hinged doors are, in principle, to be opened outward.

2. The sill height of access openings is not to be less than 380 mm above the upper surface of the deck. However, higher sill height may be required when deemed necessary by this society.