TERMINOLOGY:
Air Lock:- A seperation area used to maintain adjacent areas at a perssure differential, e.g. an electric motor room air-lock on a gas carrier is used to maintain pressure segregation between a gas-dangerous zone on the open weather deck and the presuurised gas-safe motor room.
Anaesthesia:- A loss of bodily sensation or consciousness.
Approved Equipment:- Equipment of a design that has been type tested and approved by an appropriate authority such as Administration or Classification Society. Such authority will have certified the particular equipment as safe for use in a specified hazardous atmosphere.
Asphyxiation:- The condition arising when the blood is deprived of an adequate supply of oxygen, so that loss of consciousness will follow.
Asphyxiant Gas:- A gas which has little or no positive toxic effect but which can bring about unconsciousness and death by replacing air and thus depriving an organism of oxygen.
Auto-Ignition Temperature:- The lowest temperature to which a solid, liquid or gas requires to be raised to cause self-sustained combustion without initiation by a spark, flame or other source of ignition.
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