Home / Standards / GB/T 12149-2007 GB/T 12149-2007 Abolished Water for industrial circulating cooling system and boiler - Determination of silica 工业循环冷却水和锅炉用水中硅的测定 Standard Type GBT ICS 71.040.40 CCS G76 Status 废止 Issue Date 2007-08-13 Implementation 2008-02-01 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