... supplement to IEC 6007 9-4 (1966), Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for ignition temperature IEC 6007 9-2 0:1996, Electrical apparatus for explosive gas atmospheres ... 426: Electrical apparatus for explosive atmospheres IEC 6007 9-4 :1975, Electrical apparatus for explosive gas atmospheres – Part 4: Method of test for ignition temperature IEC 6007 9-4 A:1970, First ... ``,`,`,,,,`,,,,`,```,``````, `-` -` ,,`,,`,`,,` - Partie 10: Classement des emplacements dangereux 6007 9-1 0 IEC: 2002 –9– ELECTRICAL APPARATUS FOR EXPLOSIVE GAS ATMOSPHERES – Part 10: Classification of hazardous areas General...