First supplement to Publication 79·4 (1966)
Electrical apparatus for explosive gas atmospheres, Part 4: Method of test for ignition temperature
IEC Technical Committee
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.