AS NZS 4641:2018 pdf free.Electrical equipment for detection of oxygen and other gases and vapours at toxic levels- General requirements and test methods. 1.3 DEFINITIONS For the purpose of this Standard the definitions below apply. NOTE: For other definitions, AS/NZS 60079.0 and AS/NZS 60079.29.1 may be taken for guidance. 1.3.1 Gas properties 1.3.1.1 Ambient temperature Temperature of the normal atmosphere...
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