Electrical apparatus for explosive gas atmospheres - Part 1-1: Flameproof enclosures "d" - Method of test for ascertainment of maximum experimental safe gap— 19 стр.
Recommendations for the classification of materials for the insulation of electrical machinery and apparatus in relation to their thermal stability in service— 31 стр.
Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture (ISO/IEC 80079-34:2011, modified); German version EN ISO/IEC 80079-34:2011— 60 стр.