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GB/T 4324.14-2012: Methods for chemical analysis of tungsten -- Part 14: Determination of residue content after chloride volatility -- Gravimetric method
Status: Valid GB/T 4324.14: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4324.14-2012 | English | 169 |
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Methods for chemical analysis of tungsten -- Part 14: Determination of residue content after chloride volatility -- Gravimetric method
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GB/T 4324.14-2012
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| GB/T 4324.14-1984 | English | 199 |
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Methods for chemical analysis of tungsten--The atomic absorption spectrophotometric method for the determination of calcium content
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GB/T 4324.14-1984
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Basic data | Standard ID | GB/T 4324.14-2012 (GB/T4324.14-2012) | | Description (Translated English) | Methods for chemical analysis of tungsten -- Part 14: Determination of residue content after chloride volatility -- Gravimetric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H63 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 7,771 | | Older Standard (superseded by this standard) | GB/T 4324.29-1984 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the tungsten trioxide, tungsten powder, tungsten carbide and tungsten carbide casting residue after evaporation of the amount of chloride method. This section applies to tungsten trioxide, tungsten powder, tungsten carbide and tung | GB/T 4324.14-2012: Methods for chemical analysis of tungsten -- Part 14: Determination of residue content after chloride volatility -- Gravimetric method
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Methods for chemical analysis of tungsten Part 14. Determination of residue content after chloride volatility Gravimetric method
ICS 77.120.99
H63
National Standards of People's Republic of China
Replacing GB/T 4324.29-1984
Chemical analysis of tungsten
Part 14. Determination of residue content after chloride volatility
Gravimetric method
Part 14. Determinationofresiduecontentafterchloridevolatility-
Issued on. 2012-12-31
2013-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 4324 "chemical analysis of tungsten" is divided into 28 parts.
--- Part 1. Determination of lead content - flame atomic absorption spectrometry;
--- Part 2. Determination of bismuth content hydride generation atomic absorption spectrometry;
--- Part 3. Determination of tin content hydride generation atomic absorption spectrometry;
--- Part 4. Determination of antimony content hydride generation atomic absorption spectrometry;
--- Part 5. Determination of arsenic content by hydride generation atomic absorption spectrometry;
--- Part 6. Determination of iron content of phenanthroline spectrophotometry;
--- Part 7. Determination of cobalt content by inductively coupled plasma atomic emission spectrometry;
--- Part 8. Determination of the amount of nickel by inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry Diacetyldioxime
Gravimetric method;
--- Part 9. Determination of cadmium content by inductively coupled plasma atomic emission spectrometry and flame atomic absorption spectrometry;
--- Part 10. Determination of copper content - Flame atomic absorption spectrometry;
--- Part 11. Determination of aluminum content by inductively coupled plasma atomic emission spectrometry;
--- Part 12. Determination of the amount of silicon tetrachloride - molybdenum blue spectrophotometric method;
--- Part 13. Inductively coupled plasma calcium atomic emission spectrometry;
--- Part 14. Chlorinated Volatile residue amount after Gravimetric method;
--- Part 15. Determination of magnesium content - Flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry;
--- Part 16. Determination of loss on ignition - Gravimetric method;
--- Part 17. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 18. Determination of potassium content by flame atomic absorption spectrometry;
--- Part 19. Determination of titanium content of two methane antipyrine spectrophotometry;
--- Part 20. vanadium content - Inductively coupled plasma atomic emission spectrometry;
--- Part 21. Determination of chromium content by inductively coupled plasma atomic emission spectrometry;
--- Part 22. manganese content - Inductively coupled plasma atomic emission spectrometry;
--- Part 23. Determination of sulfur content of combustion conductance method and frequency combustion infrared absorption method;
--- Part 24. Determination of phosphorus content - Molybdenum blue spectrophotometric method;
--- Part 25. Determination of oxygen pulse heating inert gas fusion - infrared absorption method;
--- Part 26. Determination of nitrogen pulse heating inert gas fusion - thermal conductivity method and Nessler reagent spectrophotometric method;
--- Part 27. Determination of carbon content in the high-frequency combustion infrared absorption method;
--- Part 28. Determination of molybdenum content - Thiocyanate spectrophotometric method.
This section GB/T Part of 144,324.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB /"Determination of the amount of the residue after the volatile chlorinated chemical analysis of tungsten - The gravimetric method" T 4324.29-1984. This portion
GB/T 4324.29-1984 compared to the main technical changes are as follows.
--- Scope added casting WC;
--- The "measurement frequency" in the "three" to "two";
--- The "Sample volume" in the "3.000 ~ 5.000g" to "3.000g".
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is drafted. Zhuzhou Cemented Carbide Group Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality.
The main drafters of this section. Yin Hua, Zhang Ying, Guo Liping, Wangji Shen, easy Jianbo, Peng Yu, Zhao Sheng Chi, Zhangjiang Feng.
This part of the standard replaces the previous editions are.
--- GB/T 4324.29-1984.
Chemical analysis of tungsten
Part 14. Determination of residue content after chloride volatility
Gravimetric method
1 Scope
GB/T 4324 provisions of this part of the tungsten, tungsten powder, tungsten carbide residue and determination of the amount of post-chlorinated volatile trioxide cast tungsten carbide.
This Part applies to tungsten, tungsten powder, the amount of residue was determined after chloride volatility of tungsten carbide and cast tungsten trioxide. Measurement range
0.02% to 0.20%.
2 Method summary
Sample at 750 ℃ \u200b\u200b~ 800 ℃ through hydrogen chloride gas, so that after the volatile components to escape the weight of the residue determination.
3 Reagents and materials
3.1 sulfate (ρ1.84g/mL).
HCl 3.2 - Sodium chloride mixture. 2 parts of hydrochloric acid (ρ1.19g/mL) of sodium chloride and 1 part by mass ratio.
4 instruments and equipment
4.1 furnace with temperature controller.
4.2 chlorination apparatus is shown in Figure 1.
Explanation.
1 --- hydrogen chloride gas generator;
2 --- buffer gas bottle;
3 --- drying gas bottle (built-in concentrated sulfuric acid);
4 --- gas flowmeter;
5 --- platinum boat (or quartz boat) high 10mm, catchy width 15mm, bottom width of 10mm, catchy length 85mm, Lower length 80mm;
6 --- tube furnace. the effective length of about 300mm;
7 --- quartz reaction tube inner diameter of 19mm ~ 20mm, length 650mm;
8 --- thermocouple pyrometer.
figure 1
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