Home / Standards / GB 10531-1989 GB 10531-1989 Abolished Water treatment chemicals--Ferrous sulphate 水处理剂 硫酸亚铁 Standard Type GB ICS 13.060 CCS G77 Status 废止 Issue Date 1989-03-22 Implementation 1989-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A