This standard specifies the method for the determination of copper content in tin-lead solder. This standard applies to the determination of copper content in tin-lead solder. Measuring range: 0.0020% to 0.2500%.
GB/T 10574.7-1989 history
2003GB/T 10574.6-2003 Methods for chemical analysis of tin-lead solders--Determination of copper content
1989GB/T 10574.7-1989 Tin-lead solders--Determination of copper content--2,9-dimethyl-1,10-phenanthroline spetrophotometric method
GB/T 10574.7-1989 was changed to GB/T 10574.6-2003 Methods for chemical analysis of tin-lead solders--Determination of copper content.