1517 San Jacinto St.; Houston, Texas, 77002
phone 713-652-3937 | 800-423-1825
fax 713-652-1914 | 713-652-1911
IEC 79-1A: First Supplement to Publication 79-1 (1971) Electrical Apparatus for Explosive Gas Atmospheres Part 1: Construction and Test of Flameproof Enclosures of Electrical Apparatus