Home / Standards / GB/T 3637-2021 GB/T 3637-2021 Active Liquid sulphur dioxide 液体二氧化硫 Standard Type GBT ICS 71.060.20 CCS G13 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A