Home / Standards / GB/T 4553-2016 GB/T 4553-2016 Active Sodium nitrate for industrial use 工业硝酸钠 Standard Type GBT ICS 71.060.50 CCS G12 Status 现行 Issue Date 2016-12-13 Implementation 2017-07-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A