This standard specifies the determination method of gadolinium content in gold alloy. This standard applies to the determination of gadolinium content in AuAgCuGd35-5-0.4 and AuAgCuMnGd33.5-3-2.5-0.4 alloys. Measuring range: 0.3% to 0.6%.
GB/T 15072.11-1994 history
2008GB/T 15072.11-2008 Test method of precious metal alloys.Determination of gadolinium and beryllium contents for gold alloys.Inductively coupled plasma atomic emission spectrometry