This standard specifies the method for the determination of bismuth content in copper and copper alloys. This standard is applicable to the determination of bismuth content in copper and copper alloys, the determination range: 0.00050% ~ 0.0040%.
GB/T 5121.23-1996 history
2008GB/T 5121.23-2008 Methods for chemical analysis of copper and copper alloys.Part 23:Determination of silicon content
1996GB/T 5121.23-1996 Copper and copper alloys--Determination of silicon content