GB/T 5121.7-2008
Methods for chemical analysis of copper and copper alloys.Part 7: Determination of arsenic content (English Version)

Standard No.

GB/T 5121.7-2008

Language

Chinese, Available in English version

Release Date

2008

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 5121.7-2008

Replace

GB/T 13293.5-1991 GB/T 5121.7-1996

Scope

This method specifies the method for the determination of arsenic in copper and copper alloys. Method 1 Hydride generation - non-dispersive atomic fluorescence spectrometry: measurement range: 0.00005% ~ 0.0010%. Method two blue spectrophotometry: measurement range: > 0.0010% ~ 0.10%. Method Three photometric method: This method is suitable for the determination of arsenic as an alloying element or impurity arsenic in copper and copper alloys listed in ISO international standards.

GB/T 5121.7-2008 history

• 2008 GB/T 5121.7-2008 Methods for chemical analysis of copper and copper alloys.Part 7: Determination of arsenic content
• 1996 GB/T 5121.7-1996 Copper and copper alloys--Determination of arsenic content
• 1991 GB/T 13293.5-1991 Higher purity copper cathode.Determination of arsenic content.Heteropoly arsenomolybdic acid-crystal violet spectrophotometric method

GB/T 5121.7-2008 Methods for chemical analysis of copper and copper alloys.Part 7: Determination of arsenic content has been changed from GB/T 13293.5-1991 Higher purity copper cathode.Determination of arsenic content.Heteropoly arsenomolybdic acid-crystal violet spectrophotometric method.

GB/T 5121.7-2008 -All Parts