Home / Standards / GB/T 5138-2021 GB/T 5138-2021 Active Liquid chlorine for industrial use 工业用液氯 Standard Type GBT ICS 71.060.10 CCS G13 Status 现行 Issue Date 2021-08-20 Implementation 2022-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A