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GB/T 4333.10-2019 English PDF

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GB/T 4333.10-2019: Ferrosilicon - Determination of carbon content - Infrared absorption method
Status: Valid

GB/T 4333.10: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 4333.10-2019279 Add to Cart 3 days Ferrosilicon - Determination of carbon content - Infrared absorption method Valid
GB/T 4333.10-1990179 Add to Cart 2 days Methods for chemical analysis of ferrosilicon. The infrared absorption method for the determination of carbon content Obsolete

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GB/T 5686.2   GB/T 3654.3   GB/T 4336   GB/T 4333.2   GB/T 4333.8   GB/T 4333.6   

Basic data

Standard ID: GB/T 4333.10-2019 (GB/T4333.10-2019)
Description (Translated English): Ferrosilicon - Determination of carbon content - Infrared absorption method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H11
Classification of International Standard: 77.100
Word Count Estimation: 14,150
Date of Issue: 2019-06-04
Date of Implementation: 2020-05-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 4333.10-2019: Ferrosilicon - Determination of carbon content - Infrared absorption method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Ferrosilicon--Determination of carbon content--Infrared absorption method ICS 77.100 H11 National Standards of People's Republic of China Replace GB/T 4333.10-1990 Ferrosilicon carbon content determination infrared absorption method Published on.2019-06-04 2020-05-01 implementation State market supervision and administration China National Standardization Administration issued

Foreword

The analysis method of GB/T 4333 ferrosilicon is divided into 9 parts. --- GB/T 4333.1 Determination of silicon iron content - Perchloric acid dehydration weight method and potassium fluorosilicate capacity method; ---GB/T 4333.2 Ferrosilicon chemical analysis method 铋phosphorus molybdenum blue method for the determination of phosphorus; --- GB/T 4333.3 Ferrosilicon chemical analysis method potassium periodate spectrophotometric determination of manganese content; --- GB/T 4333.4 Determination of ferrosilicon content - chrome azurol S spectrophotometry, EDTA titration and flame atomic absorption Spectroscopy --- GB/T 4333.5 Determination of ferrosilicon, manganese, aluminium, calcium, chromium and iron content - Dispersion X-ray fluorescence spectroscopy Glass film method); --- GB/T 4333.6 Determination of chromium content of ferrosilicon - Diphenylcarbonyl hydrazide spectrophotometric method; --- GB/T 4333.7 Determination of sulfur content of ferrosilicon - Infrared absorption method and chromatographic separation of barium sulfate gravimetric method; --- GB/T 4333.8 ferrosilicon chemical analysis method for the determination of calcium by atomic absorption spectrometry; ---GB/T 4333.10 Determination of carbon content of ferrosilicon Infrared absorption method. This part is the 10th part of GB/T 4333. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 4333.10-1990 "silicon iron chemical analysis method infrared absorption method for the determination of carbon". This part and Compared with GB/T 4333.10-1990, the main technical changes are as follows. ---Modified the measurement range, changed to 0.0060%~0.025% in the first paragraph; 0.025%~0.250% in the second paragraph (see Chapter 1,.1990) Chapter 1 of the annual edition); --- Added normative references (see Chapter 2); --- Increased the first analysis step in the range of 0.0060%~0.025% (see Chapter 7); --- Modified the amount of tin, pure iron and tungsten particles, changed to tin 0.30g ± 0.05g, pure iron 0.50g ± 0.05g, tungsten particles 1.20g ± 0.05g (see 8.4, 1982 version 6.2); --- Revised the content of the allowable difference, conducted a joint test of inter-laboratory precision, and used the reproducibility limit and reproducibility limit obtained by statistics. R replaces “allowable difference” (see Chapter 9, Chapter 7 of the.1990 edition); --- Added the normative appendix "Flowchart for Acceptance of Sample Analysis Results" (see Appendix A). This part was proposed by the China Iron and Steel Association. This part is under the jurisdiction of the National Iron and Iron Alloy Standardization Technical Committee (SAC/TC318). This section drafted by. Bengang Steel Plate Co., Ltd., Erdos Xijin Mining and Metallurgy Co., Ltd., Ordos City Metrology and Measurement Institute, Beijing Shougang Co., Ltd., Hunan Huoshen Instrument Co., Ltd., Ninggang Iron and Steel Co., Ltd., Metallurgical Industry Information Standard Research Institute. The main drafters of this section. Li Fengjuan, Zhang Wei, Zhao Dan, Ma Ning, Xu Wengao, Jiao Bin, Wang Chunguang, Yu Lizhen, Liu Peng, Li Yuehua, Bai Xuesong, Gao Yanqiang, Fei Shumei, Rong Jinxiang, Liu Zhenghua, Wu Jun, Chen Gang, Huang Xin, Zhang Xijing, Cui Yuwen, Lu Fen, Lu Chunsheng. The previous versions of the standards replaced by this section are. ---GB/T 4333.10-1990. Ferrosilicon carbon content determination infrared absorption method Cautions - Personnel using this section should have hands-on experience in formal laboratory work. This section does not address all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.

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
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