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IECEx TRF 60079-1 Ed. 3.0 en:2002
IECEx Test Report for IEC 60079-1:1990, edition 3.0, amendment 1:1993 and amendment 2:1998, Electrical apparatus for explosive gas atmospheres - Part 1: Construction and verification test of flameproof enclosures of electrical apparatus
International Electrotechnical Commission [iec]