Home / Standards / GB/T 20936.4-2017 GB/T 20936.4-2017 Active Gas detectors for explosive atmospheres—Part 4:Performance requirements of open path detectors for flammable gases 爆炸性环境用气体探测器 第4部分:开放路径可燃气体探测器性能要求 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