Home / Standards / GB 14591-1993 GB 14591-1993 Abolished Water clarfying agent--Polymeric ferric sulfate 净水剂 聚合硫酸铁 Standard Type GB ICS 13.060 CCS G77 Status 废止 Issue Date 1993-08-19 Implementation 1994-09-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A