HG/T 3521-1985 Determination method of ethylenediaminetetramethylenephosphonic acid (EDTMPA) in phosphorus compound inhibitors in industrial circulating cooling water (English Version)
1970HG/T 3521-1985 Determination method of ethylenediaminetetramethylenephosphonic acid (EDTMPA) in phosphorus compound inhibitors in industrial circulating cooling water