Home / Standards / GB/T 3836.7-2017 GB/T 3836.7-2017 Active Explosive atmospheres—Part 7: Equipment protection by powder filling “q” 爆炸性环境 第7部分:由充砂型“q”保护的设备 Standard Type GBT ICS 29.260.20 CCS K35 Status 现行 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A