GB/T 15072.7-1994
Gold alloys-Determination of chromium content (English Version)
- Standard No.
- GB/T 15072.7-1994
- Language
- Chinese, Available in English version
- Release Date
- 1994
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2008-09
- Replace By
- GB/T 15072.7-2008
- Latest
- GB/T 15072.7-2008
- Scope
- This standard specifies the method for the determination of chromium content in gold alloys. This standard applies to the determination of chromium content in AuNiCr5-1 and AuNiCr5-2 alloys. Measuring range: 0.5% to 3%.
GB/T 15072.7-1994 history
- 2008 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
- 1994 GB/T 15072.7-1994 Gold alloys-Determination of chromium content
GB/T 15072.7-1994 -All Parts
GB/T 15072.1-2008 Test method of precious alloys.Determination of gold content for gold ,platinum and palladium alloys.Potentiometric titration using ferrous sulfate
GB/T 15072.10-2008 Test method of precious metal alloys.Determination of nickel content for gold alloys.Complexometric backing titration using EDTA
GB/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
GB/T 15072.12-2008 Test method of precious metal alloys.Determination of nickel contents for silver alloys.Hydrogen peroxide spectrophotometry
GB/T 15072.13-2008 Test method of precious metal alloys.Determination of tin,cerium and lanthanium contents for silver alloys.Inductively coupled clasma atomic emission spectrometry
GB/T 15072.14-2008 Test method of precious metal alloys.Determination of aluminium and nickel contents for silver alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.15-2008 Test method of precious metal alloys.Determination of nickel,zinc and manganese contents for gold,silver and palladium alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.16-2008 Test method of precious metal alloys.Determination of copper and manganese contents for gold alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.17-2008 Test method of precious metal alloys.Determination of tungsten contents for platinum alloys.Tungstic acid gravimetry
GB/T 15072.18-2008 Test method of precious metal alloys.Determination of zirconium and gadolinium contents for gold alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.19-2008 Test method of precious metal alloys.Determination of vanadium and magnesium contents for silver alloys.Inductively coupled plasma atomic emission spectrometry
GB/T 15072.2-2008 Test method of precious metal alloys.Determination of silver contents for silver alloys.Potentionmeter titration with sodium chloride
GB/T 15072.20-1994 Gold alloys-Determination of zirconium content
GB/T 15072.3-2008 Test method of precious metal alloys.Determination of platinum content for gold,platinum and palladium alloys.Electricity titration using potassium permanganate
GB/T 15072.4-2008 Test method of precious metal alloys.Determination of palladium content for palladium and silver alloys.Butanedione dioxime gravimetry
GB/T 15072.5-2008 Test method of precious metal alloys.Determination of silver content for gold and palladium alloys.Potentionmeter titration with potassium iodide
GB/T 15072.6-2008 Test method of precious metal alloys.Determination of iridium contents for platinum,palladium alloys.Electricity titration with ferrous sulfate
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
GB/T 15072.8-2008 Test method of precious metal alloys.Determination of copper content for gold,palladium and silver alloys.Complexometric return titration using thiourea releasing EDTA
GB/T 15072.9-2008 Test method of precious metal alloys.Determination of indium content for gold alloys.Complexometric return titration using EDTA