GB 3836.12-2008 爆炸性环境 第12部分:气体或蒸气混合物按照其最大试验安全间隙和最小点燃电流的分级 Explosive atmospheres - Part 12: Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current
Explosive atmospheres - Part 12: Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current