Home / Standards / GB/T 4209-2022 GB/T 4209-2022 Active Sodium silicate for industrial use 工业硅酸钠 Standard Type GBT ICS 71.060.50 CCS G12 Status 现行 Issue Date 2022-07-11 Implementation 2023-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A