60079-4-1975 Materiel elecrique pour atmospheres explosives Quatrime partie: Methode d?essai pour la determination de la temperature d?inflammation (Edition 2.0)
Electrical Apparatus for Explosive Gas Atmospheres Part 4: Method of Test for Ignition Temperature (Edition 2.0)
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This method of test is intended for use in the determination of the ignition temperature of a chemically pure vapour or gas in air at atmospheric pressure.