Home / Standards / GB/T 17874 GB/T 17874 Abolished Electronic specialty gas—Boron trichloride 电子特气 三氯化硼 Standard Type GBT ICS 71.100.20 CCS G86 Status 废止 Issue Date 2021-10-11 Implementation 2022-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委