Electrical apparatus for explosive gas atmospheres - Part 1-1: Flameproof enclosures "d" - Method of test for ascertainment of maximum experimental safe gap— 19 стр.
Industrial Trucks - Safety requirements and verification - Supplementary requirements for operation in potentially explosive atmospheres; German version EN 1755:2015— 58 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.