Home / Standards / GB/T 31058-2014 GB/T 31058-2014 Active Gases for electronic industry―Silicon tetrafluoride 电子工业用气体 四氟化硅 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2014-12-22 Implementation 2015-07-01 Responsible Dept 国家标准委 Drafting Unit N/A