This standard specifies the method for the determination of iridium content in platinum and palladium alloys. This standard applies to the determination of iridium content in PtIr10, PtIr17.5, PtIr25, PdIr10 and PdIr18 alloys. The measurement range is 5% to 30%.
GB/T 15072.6-1994 history
2008GB/T 15072.6-2008 Test method of precious metal alloys.Determination of iridium contents for platinum,palladium alloys.Electricity titration with ferrous sulfate
1994GB/T 15072.6-1994 Platinum,Palladium alloys-Determination of iridium content