YS/T 372.12-1994
Methods for elementary analysis of precious alloy.Determination of zinc content.EDTA complexometric titration (English Version)

Standard No.

YS/T 372.12-1994

Language

Chinese, Available in English version

Published By

Professional Standard - Non-ferrous Metal

Status

Be replaced 2006-12

Replace By

YS/T 372.19-2006

YS/T 372.9-2006

YS/T 372.12-2006

Latest

YS/T 372.19-2006

YS/T 372.9-2006

YS/T 372.12-2006

YS/T 372.12-1994 history

• 2006 YS/T 372.19-2006 Methods for elementary analysis of precious alloy. Determination of yttrium content.Chlorophosphonazo Ⅲ spectrophotometry
• 1970 YS/T 372.12-1994 Methods for elementary analysis of precious alloy.Determination of zinc content.EDTA complexometric titration

YS/T 372.12-1994 Methods for elementary analysis of precious alloy.Determination of zinc content.EDTA complexometric titration was changed to YS/T 372.9-2006 Methods for elementary analysis of precious alloy. Determination of nickel content.EDTA complexometric titration .

YS/T 372.12-1994 Methods for elementary analysis of precious alloy.Determination of zinc content.EDTA complexometric titration was changed to YS/T 372.19-2006 Methods for elementary analysis of precious alloy. Determination of yttrium content.Chlorophosphonazo Ⅲ spectrophotometry.