GB/T 39138.1-2020 《Methods for chemical analysis of gold nickel chromium iron silicon boron alloys—Part 1：Determination of gold content—Potentiometric titration using ferrous sulfate》 Related products
This standard specifies a method for the determination of gold content in gold-nickel-chromium-iron-silicon-boron alloys by the ferrous sulfate potential Titrimetric method, which is suitable for the determination of gold content in the range of 15.00% to 30.00%. After the sample is dissolved in muriatic acid and nitric acid, Potentiometric titration, poten-tiometry are carried out in sulfuric acid and phosphoric acid medium to determine the gold content through the potential jump point. The standard details the reagents, materials, instruments and operation procedures required for the experiment, providing a standardized detection method for the chemical analysis of related alloys.
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 | H15 | ICS | 77.120.99 |
| Release Date | 2020-10-11 00:00:00 | Implementation Date | 2021-09-01 00:00:00 |
Extended reading
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