GB/T 15072.17-2008 Test method of precious metal alloys.Determination of tungsten contents for platinum alloys.Tungstic acid gravimetry (English Version)
This Part specifies the method for the determination of tungsten content in platinum alloys. This section applies to the determination of tungsten content in PtW alloys. Measuring range (mass fraction): 7% to 10%.
GB/T 15072.17-2008 Referenced Document
YS/T 371 Methods for chemical analysis of precious metals alloys. General rules and regulations
GB/T 15072.17-2008 history
2008GB/T 15072.17-2008 Test method of precious metal alloys.Determination of tungsten contents for platinum alloys.Tungstic acid gravimetry
1994GB/T 15072.17-1994 Platinum alloys-Determination of tungsten content