Home / Standards / GB 4482-1993 GB 4482-1993 Abolished Water clarifying agent--Ferric chloride 净水剂氯化铁 Standard Type GB ICS 71.060.50 CCS G77 Status 废止 Issue Date 1993-03-03 Implementation 1993-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A