GB/T 4333.10-2019Ferrosilicon—Determination of carbon content—Infrared absorption method (English PDF)
硅铁 碳含量的测定 红外线吸收法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 4, 2019
Implementation date
May 1, 2020
Scope
GB/T 4333.10-2019 is the English-translated version of 硅铁 碳含量的测定 红外线吸收法.
GB/T 4333.10-2019 is the Chinese standard "Ferrosilicon—Determination of carbon content—Infrared absorption method". Its scope clause reads: This part of GB/T 4333 specifies the determination of carbon content in ferrosilicon by infrared absorption method.
This section applies to the determination of carbon content in ferrosilicon. Measuring range (mass fraction). first paragraph. 0.0060%~0.025%; second paragraph. 0.025%~0.250%. Its clauses include principle; reagents and materials.
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Document preview — GB/T 4333.10-2019
National Standard of the People's Republic of China
- ICS
- 77.100
- Classification
- H 11
- Replacing
- GB/T 4333.10-1990
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Principle
- 4 reagents and materials
1 Scope
This part of GB/T 4333 specifies the determination of carbon content in ferrosilicon by infrared absorption method.
This section applies to the determination of carbon content in ferrosilicon. Measuring range (mass fraction). first paragraph. 0.0060%~0.025%; second paragraph.
0.025%~0.250%.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Preparation and preparation of GB/T 4010 ferroalloy chemical analysis sample
GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) Part 1. General and definition
GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determining the repeatability of standard measurement methods
Basic method of reproducibility
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
3 Principle
The sample is heated in the oxygen flow of the high-frequency induction furnace to heat the carbon dioxide generated by the combustion, and is carried by oxygen to the measuring chamber of the infrared analyzer, and the oxygen is dissolved.
Carbon absorbs infrared energy of a specific wavelength, and its absorption energy is proportional to its concentration. The quality of carbon can be measured according to the change of energy received by the detector.
fraction.
4 reagents and materials
Only reagents identified as analytically pure were used in the analysis unless otherwise stated.
4.1
Magnesium perchlorate, anhydrous, granular.
4.2
Alkali asbestos, granular.
4.3
Glass wool.
4.4
Tungsten grain, the carbon content is less than 0.002%, and the particle size is 0.8mm~1.4mm.
4.5
Tin particles, the carbon content is less than 0.002%, and the particle size is 0.4mm~0.8mm. Use acetone (4.11) if necessary to clean the surface and at room temperature dry.
4.6
Pure iron, carbon content less than 0.002%, crumbly.
4.7
Oxygen, purity greater than 99.95%, can be used if other levels of oxygen can obtain a low and consistent blank.
4.8
Low carbon tungsten particles, carbon content less than 0.0005%, particle size 0.8mm~1.4mm. Applicable to the first paragraph of the detection range.
4.9
Low carbon tin particles, carbon content less than 0.0005%, particle size 0.4mm~0.8mm. Use acetone (4.11) to clean the surface if necessary, and in the room […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 4333.10
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 4333.10-2019 | Ferrosilicon—Determination of carbon content—Infrared absorption method | current edition | Current |
| GB/T 4333.10-1990 | Ferrosilicon—Determination of carbon content—Infrared absorption method | previous edition | Superseded |
This page sells the current edition, GB/T 4333.10-2019. Earlier editions are listed for reference only.
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