Deck General · Enclosed Space
Before any crew member enters an enclosed or confined space such as a cargo tank, the first safety action is to:
- ATest the atmosphere for oxygen content, flammable gas, and toxic gas, and ventilate✓ Correct
- BEnter quickly to test for fumes
- CLight a match to check for gas
- DOpen the space and wait one minute
Explanation
An enclosed-space entry permit requires atmosphere testing (oxygen ~20.9%, flammable below set limits, toxics within limits) and ventilation before entry, plus a standby person and rescue arrangements.
Authority: SOLAS Chapter III, Reg. 19; IMO Res. A.1050(27)
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