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YS/T 575.24-2009

Chinese Standard: 'YS/T 575.24-2009'
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YS/T 575.24-2009English169 Add to Cart Days<=3 Methods for chemical analysis of aluminum ores. Part 24: Determination of carbon content and sulfur content. Infrared absorption mehtod Valid YS/T 575.24-2009
YS/T 575.24-2009Chinese14 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

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Detail Information of YS/T 575.24-2009; YS/T575.24-2009
Description (Translated English): Methods for chemical analysis of aluminum ores. Part 24: Determination of carbon content and sulfur content. Infrared absorption mehtod
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H30
Classification of International Standard: 77.120.10
Word Count Estimation: 6,682
Date of Issue: 2009-12-04
Date of Implementation: 2010-06-01
Adopted Standard: ISO 15350-2000, NEQ
Drafting Organization: Zhengzhou Research Institute Aluminum Corporation of China
Administrative Organization: National Standardization Technical Committee of non-ferrous metals
Regulation (derived from): MIIT [2009] No. 66
Proposing organization: National Nonferrous Metals Standardization Technical Committee
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This standard provides for bauxite Determination of carbon and sulfur. This standard applies to bauxite Determination of carbon and sulfur. Measuring range (mass fraction): carbon 0. 02% to 10. 00%, sulfur is 0. 020% ~ 12. 00%.


YS/T 575.24-2009
Methods for chemical analysis of aluminum ores. Part 24. Determination of carbon content and sulfur content.Infrared absorption mehtod
ICS 77.120.10
H30
People's Republic of China Nonferrous Metals Industry Standard
Chemical analysis of bauxite
Part 24. determination of carbon and sulfur content
Infrared absorption method
2009-12-04 released
2010-06-01 Implementation
Issued by the Ministry of Industry and Information Technology of the People's Republic of China
Preface
YS/T 575 "bauxite chemical analysis method" a total of 24 parts.
- Part 1. Determination of alumina content - EDTA titration;
- Part 2. Determination of silica content - Molybdenum blue photometric method;
- Part 3. Determination of silica content - Molybdenum blue photometric method;
- Part 4. Determination of ferric oxide content - Potassium dichromate titration;
- Part 5. Determination of ferric oxide content - o - phenanthroline photometric method;
- Part 6. Determination of titanium dioxide content - Antipyridine methane photometric method;
- Part 7. Determination of calcium oxide content - Flame atomic absorption spectrometric method;
- Part 8. Determination of magnesium oxide content - Flame atomic absorption spectrometric method;
- Part 9. Determination of potassium oxide and sodium oxide content - Flame atomic absorption spectrometric method;
- Part 10. Determination of manganese oxide content - Flame atomic absorption spectrometric method;
- Part 11. Determination of chromium dioxide content - Flame atomic absorption spectrometric method;
- Part 12. Determination of vanadium pentoxide content - Benzoylphenoxylamine photometric method;
- Part 13. Determination of zinc content - Flame atomic absorption spectrometric method;
- Part 14. Determination of total rare earth oxides - Tribromoarsenazo photometric method;
- Part 15. Determination of gallium trioxide content - Rhodamine B extraction photometric method;
- Part 16. Determination of phosphorus pentoxide content - Molybdenum blue photometric method;
- Part 17. Determination of sulfur content - Combustion - iodometric method;
- Part 18. Determination of total carbon content - Combustion - non - aqueous titration;
- Part 19. Determination of burn loss - Weight method;
- Part 20. Preparation of pre-dried samples;
- Part 21. Determination of organic carbon content - Titration;
- Part 22. Determination of wet water content in samples - Weight method;
- Part 23. Determination of elemental content by X - ray fluorescence spectrometry;
- Part 24. Determination of carbon and sulfur content - Infrared absorption method.
This section is part 24.
This part refers to ISO 15350..2000 (E) "Determination of total carbon and sulfur content of iron and steel" and GB/T 9489.8-1988
"Determination of carbon and sulfur in corundum powder".
This part of the National Nonferrous Metals Standardization Technical Committee proposed and centralized.
This part is drafted by Zhengzhou Institute of Chinese Aluminum Industry Co., Ltd. and China National Nonferrous Metals Industry Standard Measurement Quality Institute.
This part is drafted by Zhengzhou Research Institute of China Aluminum Corporation.
This part of the main drafters. Zhang Weihua, Zhang Shuzhao, Shi Lei, warehouse Xianghui.
Chemical analysis of bauxite
Part 24. determination of carbon and sulfur content
Infrared absorption method
1 range
This section specifies the determination of carbon and sulfur for bauxite.
This part applies to the determination of carbon and sulfur in bauxite. Determination of the range (mass fraction). carbon 0.02% to 10.00%; sulfur as
0.020% to 12.00%.
2 method summary
The sample into the high-frequency burner, under the conditions of high temperature induction heating in the combustion. Where carbon and sulfur are oxidized to carbon dioxide, respectively
And sulfur dioxide, the excess oxygen is loaded into the measuring cell of the respective infrared gas analyzer. Carbon dioxide and sulfur dioxide were in the 4.262μm
And 7.40μm at a very strong characteristic absorption band, the absorption can be proportional to its concentration, according to the detector to accept the energy changes, detection
Carbon and sulfur content. Other gas components do not interfere with the determination.
3 reagents and materials
3.1 magnesium perchlorate. anhydrous, granular.
3.2 Asbestos. granular.
3.3 Glass wool.
3.4 tungsten particles. C ≤ 0.0008%, S ≤ 0.0005%, particle size 0.4mm ~ 0.8mm.
3.5 pure iron. purity greater than 99.8%, carbon, sulfur content of less than 0.002%, particle size 0.8mm ~ 1.68mm.
3.6 Oxygen. Purity greater than 99.95%.
3.7 Power gas source. nitrogen or compressed air, its impurities (water and oil) is less than 0.5%.
3.8 Baseline Calcium Carbonate. Dry at 105 ° C for 2 h, after cooling and place in the dryer.
3.9 potassium sulfate (excellent grade pure). drying at 105 ℃ 2h, after cooling placed in the dryer in reserve.
4 instruments and equipment
4.1 carbon and sulfur analyzer. with high-frequency induction furnace, the sample should meet the melting temperature requirements.
4.2 Analysis of the balance. accurate to 0.0001g.
4.3 high temperature muffle furnace.
4.4 oven.
4.5 dryer.
White value is the lowest.
5 samples
5.1 Specimens shall all pass through a 125 μm standard screen.
5.2 The sample should be pre-baked in an oven (4.4) at 105 ° C ± 5 ° C for 2 h, placed in a desiccator and cooled to room temperature.
Related standard:   YS/T 575.25-2014  YS/T 575.23-2009
   
 
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