Home / Standards / GB/T 12149 GB/T 12149 Active Determination of silica in water for industrial circulating cooling system and boiler 工业循环冷却水和锅炉用水中硅的测定 Standard Type GBT ICS 13.060.50;71.040.40 CCS G76 Status 现行 Issue Date 2017-09-07 Implementation 2018-04-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit 中国石油和化学工业联合会