The document describes a method for the determination of silicon content in ferroboron by perchloric acid dehydrate weight method. It is suitable for the determination of silicon content in ferroboron, and the determination range is 0.50%~ 16.00%. In the warning, it is pointed out that the user should have formal laboratory work practical experience, because the document does not cover all possible safety issues, and the user is responsible for taking appropriate safety and health measures and ensuring compliance with the relevant national regulations. In the normative reference document, a number of relevant documents are cited, such as the taking and preparation of samples for chemical analysis of ferroalloys, the Precision of Measuring methods and results, the specifications and test methods of analytical laboratory water, the representation and determination of numerical revision rules and limit values, etc. The document does not deal with terms and definitions, but in the principle section, the test material is described in detail. After the steps of alkali fusion, acidification, perchloric acid smoking and dehydrating, the test material is treated by burning, volatilization, re-burning, etc., and finally the mass difference before and after hydrofluoric acid treatment is calculated. In terms of reagents and materials, the use of approved analytically pure reagents and compliant water is emphasized.
| Status | Active |
|---|---|
| CCS | H11 | ICS | 77.100 |
| Release Date | 2023-11-27 00:00:00 | Implementation Date | 2024-06-01 00:00:00 |