Home / Standards / GB/T 31590-2015 GB/T 31590-2015 Active Analytical method of chemical composition of flue gas DeNOx catalysts 烟气脱硝催化剂化学成分分析方法 Standard Type GBT ICS 71.100.99 CCS G 74 Status 现行 Issue Date 2015-06-02 Implementation 2016-01-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A