This standard specifies the determination method of gold content in gold and palladium alloys. This standard is applicable to the determination of the amount of gold in the following grades of alloys: AuNi9.0, AuNu7.5-1.5, AuNr5.01.0, AuNi-Cr5.02.0, AuNiIn9.08.0, AuCuNiZn22.02.5-1.0, AuCuNiZnMn18.01.8 -0.7-0.2, AuNiFeZr5.01.5-0.3, AuNiFeZr9.02.00.3, AuAgCu20.03.0, AuAgCu35.05.0, AuAgCuGd35.05.00.5, AuAgCuMnGd35.5-3.02.5-0.5, AuAgPt25.0-6.0, P dAgCuAuPtZn30.014.010 .010.01.0. Measuring range: 5% to 95%.
GB/T 15072.1-1994 history
2008GB/T 15072.1-2008 Test method of precious alloys.Determination of gold content for gold ,platinum and palladium alloys.Potentiometric titration using ferrous sulfate
1994GB/T 15072.1-1994 Gold,palladium alloys.Determination of gold content