GB/T 15072.10-2008 《Test method of precious metal alloys - Determination of nickel content for gold alloys - Complexometric backing titration using EDTA》 Related products
This standard specifies a method for the determination of nickel content in gold alloys. It is suitable for AuNi, AuNiCu, AuNiln and AuNiFeZr alloys, and the nickel content ranges from 5% to 20%. The method uses a mixed acid of muriatic acid and nitric acid to dissolve the sample, separates the gold by sulfite reduction, and uses dimethyl glyoxoxime ethanol solution to settle to separate the nickel. Then, the nickel content is determined by using excess disodium ethylenediaminetetraacetate (EDTA) complexed with nickel, and xylenol orange as an indicator. The method provides an accurate nickel content determination process and technical requirements.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active |
|---|---|
| CCS | H68 | ICS | 77.120.99 |
| Release Date | 2008-03-31 00:00:00 | Implementation Date | 2008-09-01 00:00:00 |
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Extended reading
- 1GB/T 15072.1-2008《Test method of precious alloys - Determination of gold content for gold, platinum and palladium alloys - Potentiometric titration using ferrous sulfate》
- 2GB/T 15072.2-2008《Test method of precious metal alloys - Determination of silver contents for silver alloys - Potentionmeter titration with sodium chloride》
- 3GB/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》
- 4GB/T 15072.5-2008《Test method of precious metal alloys － Determination of silver content for gold and palladium alloys － Potentionmeter titration with potassium iodide》
- 5GB/T 15072.6-2008《Test method of precious metal alloys - Determination of iridium contents for platinum, palladium alloys - Electricity titration with ferrous sulfate》
- 6GB/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》
- 7GB/T 15072.9-2008《Test method of precious metal alloys - Determination of indium content for gold alloys - Complexometric return titration using EDTA》
- 8GB/T 13747.16-1992《Zirconium and zirconium alloys--Determination of chloric content--Silver chloride nephelometry method》
- 9GB/T 13531.3-1995《Generel methods on determination of cosmetrics--Determination of cloudiness》
- 10GB/T 13748.18-2005《Chemical analysis methods of magnesium and magnesium alloys Determination of chlorine content Silver chlorine turbidimetric method》