Home / Standards / GB/T 34091-2017 GB/T 34091-2017 Active Gas for electronic industry—Hexafluoroethane 电子工业用气体 六氟乙烷 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2017-07-31 Implementation 2017-11-01 Responsible Dept 国家标准委 Drafting Unit N/A