This standard specifies the method for the determination of iron content in gold alloys. This standard applies to the determination of the amount of iron in AuNiFeZr9-2-0.3 and AuNiFeZr5-1.5-0.3 alloys. Measuring range: 1% to 3%.
GB/T 15072.18-1994 history
2008GB/T 15072.7-2008 Test methods of precious metal alloys.Determination of chromium and iron contents for gold alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.18-1994 Gold alloys-Determination of iron content was changed to GB/T 15072.7-2008 Test methods of precious metal alloys.Determination of chromium and iron contents for gold alloys.Inductively coupled plasma atomic emission spectrometry.