First supplement to Publication 79·4 (1966)
Electrical apparatus for explosive gas atmospheres, Part 4: Method of test for ignition temperature
IEC Technical Committee
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This Publication has been prepared by IEC Technical Committee No. 31, Electrical Apparatus for Explosive Atmospheres. It forms the first Supplement to IEC Publication 79-4 and gives a list of ignition temperatures determined by the method recommended in IEC Publication 79-4. It is hoped to publish further lists of established ignition temperatures from time to time, as the results of tests made in several countries become available.