This standard specifies the method for measuring iron content in copper and copper alloys. This standard applies to the determination of iron content in copper and copper alloys. Measuring range: 0.0015% to 0.50%.
GB/T 5121.2-1996 history
2008GB/T 5121.2-2008 Methods for chemical analysis of copper and copper alloys.Part 2:Determination of phosphorus content
1996GB/T 5121.2-1996 Copper and copper alloys--Determination of phosphorus content