2018AS/NZS 4641:2018 Electrical equipment for detection of oxygen and other gases and vapours at toxic levels — General requirements and test methods
2007AS/NZS 4641:2007 Electrical apparatus for detection of oxygen and other gases and vapours at toxic levels-General requirements and test methods (Incorporating Amendment 1: June 2008)
2005AS/NZS 4641(Int):2005 Electrical apparatus for detection of oxygen and other gases and vapours at toxic levels--General requirements and test methods