... ``,`,`,,,,`,,,,`,```,``````, `-` -` ,,`,,`,`,,` - IEC 6007 9-4 , Electrical apparatus for explosive gas atmospheres - Part 4: Method of test for ignition tempera ture IEC 6007 9-1 Electrical apparatus for explosive gas atmospheres ... Dabhi/5931917101 Not for Resale, 02/12/2006 05:10:58 MST ``,`,`,,,,`,,,,`,```,``````, `-` -` ,,`,,`,`,,` - 6007 9-7 O IEC: 2001 -9 - ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES Part 7: Increased safety "e" ... either: IEC 6031 7-7 , IEC 6031 7-8 , IEC 6031 7-1 3provided that: or a) grade of IEC 6031 7-3 , - when tested in accordance with clause 13 of IEC 6031 7-3 , 6031 7-7 , 6031 7-8 or IEC IEC IEC 6031 7-1 3there...