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Section 4 Companion-ways and Other Deck Openings
401. Manholes and flush scuttles
Manholes and flush scuttles in exposed positions on the freeboard deck or superstructure deck or within superstructures other than enclosed superstructures are to be closed by steel coves capable of being made watertight.
402. Companion-ways
The height of sills of doorways above the upper surface of the deck is not to be less than given in the following Table 17.2.
Table 17.2 Height of sills of doorways (mm)
Position | Ã | Ã ≥ 30 m | Ã 〈 30 m | |
I | 450 | 300 | ||
II | 300 | 150 |