GB/T 26416.4-2022 《Chemical analysis method for rare earth ferroalloy—Part 4: Determination of iron content—Potassium dichromate titration》 Related products
This standard specifies the determination method of iron content in rare earth ferroalloys (such as lanthanum ferroalloys, cerium ferroalloys, etc.), which is suitable for samples with iron content of 10.00% to 90.00%. The method dissolves the sample by muriatic acid, reduces ferric to ferrous divalent with stannous chloride, and titrates it with potassium dichromate, and finally judges the endpoint by sodium dianiline sulfonate indicator. This method ensures the accuracy of iron content determination and is suitable for the analysis and quality control of rare earth ferroalloys.
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 | H14 | ICS | 77.120.99 |
| Release Date | 2022-12-30 00:00:00 | Implementation Date | 2023-07-01 00:00:00 |
Extended reading
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