Home / Standards / GB/T 31987-2015 GB/T 31987-2015 Active Gas for electronic industry—Germane 电子工业用气体 锗烷 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2015-09-11 Implementation 2016-05-01 Responsible Dept 国家标准委 Drafting Unit N/A