GB/T 4324.23-2012 English PDFUS$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4324.23-2012: Methods for chemical analysis of tungsten -- Part 23: Determination of sulfur content -- The combustion-conductometric titration and high frequency combustion-infrared absorption method Status: Valid GB/T 4324.23: Historical versions
Basic dataStandard ID: GB/T 4324.23-2012 (GB/T4324.23-2012)Description (Translated English): Methods for chemical analysis of tungsten -- Part 23: Determination of sulfur content -- The combustion-conductometric titration and high frequency combustion-infrared absorption method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H63 Classification of International Standard: 77.120.99 Word Count Estimation: 11,185 Older Standard (superseded by this standard): GB/T 4324.23-1984 Quoted Standard: GB/T 6682 Regulation (derived from): National Standards Bulletin No. 41 of 2012 Issuing agency(ies):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 powder, tungsten, tungsten oxide Determination of sulfur content. This section applies to tungsten powder, tungsten, tungsten oxide sulfur content. Method one determination range of 0. 0005% to 0. 012, method two measu GB/T 4324.23-2012: Methods for chemical analysis of tungsten -- Part 23: Determination of sulfur content -- The combustion-conductometric titration and high frequency combustion-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. Methods for chemical analysis of tungsten Part 23. Determination of sulfur content The combustion-conductometric titration and high frequency combustion-infrared absorption method ICS 77.120.99 H63 National Standards of People's Republic of China Replacing GB/T 4324.23-1984 Chemical analysis of tungsten Part 23. determination of sulfur content Combustion conductance method and frequency combustion infrared absorption method Part 23. Determinationofsulfurcontent- Issued on. 2013-10-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/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 4324 the first part 23. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 4324.23-1984 "chemical analysis of tungsten - The combustion - determination of sulfur content Conductivity Method." This portion GB/T 4324.23-1984 compared to the main changes are as follows. --- Measurement range was adjusted from 0.0005% to 0.012 percent to 0.0005% to 0.3%; --- Increasing the infrared absorption method; --- Supplementary terms of reproducibility; --- Supplementary test report. The method of analysis of this part of an arbitration method. This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) centralized. This section drafted by. China Molybdenum Group Co., Ltd., Guangzhou Nonferrous Metal Research Institute, Beijing General Research Institute of Mining and Metallurgy, Northwest Ferrous metals Research Institute, Zhuzhou Cemented Carbide Group Limited. The main drafters of this section. Chen Feng Group, Tian Yonghong, Xuqiong Jie, Zhuang Yichun, new Xiao, Wang Jin, Jiang Tao demand, Xu Xiaoyan, Wang Hui, Li Bo, Huangcheng Sheng. This part of the standard replaces the previous editions are. --- GB/T 4324.23-1984. Chemical analysis of tungsten Part 23. determination of sulfur content Combustion conductance method and frequency combustion infrared absorption method1 ScopeGB/T 4324 provisions of this part of the tungsten powder, tungsten, determination of the amount of sulfur oxide and tungsten. This Part applies to tungsten powder, tungsten, determination of sulfur oxide and tungsten. The method of measuring a range of 0.0005% - 0.012%; the second test method Set in the range of 0.0005% to 0.30%.2 Normative referencesThe following documents for the application of this document is essential. For cited documents with dates, only the dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis3 GeneralUnless otherwise indicated, the use of recognized analytical reagent only in the analysis; the water is distilled or deionized water or equivalent purity, shall Comply with GB/T 6682's.4 a combustion method conductance method4.1 Method summary Sample in an oxygen stream of high temperature combustion generates sulfur dioxide by iodine absorption, conductivity method. 4.2 Reagents and materials 4.2.1 copper oxide. blank value is high when dealing with the following manner. The copper cable was cut, washed through the outer layer of dirt dilute nitric acid, washed with distilled water nitrate Acid, dried, placed in a porcelain boat, under flowing oxygen at 1250 ℃ calcined 10min, remove, pour in the alloy mortar, hammer mill, over 0.147mm sieve Network backup. 4.2.2 Zinc oxide. zinc oxide loaded into the AR porcelain evaporating dish at 800 ℃ ~ 900 ℃ high temperature furnace firing 2h, then cool, crush, through Over standard 0.147mm sieve. If the blank does not meet the requirements, it can be loaded inside a porcelain boat, by 1250 ℃ calcined under flowing oxygen 15min, removed, Cooled and pulverized by standard 0.147mm sieve and set aside. 4.2.3 Saturated iodine solution. Weigh 5g iodine, placed in pre-filled with double distilled water 2000mL brown bottle, shake regularly, place a few days later, electricity Less than 20μS guide values \u200b\u200bcan be used. 4.2.4 alkaline potassium permanganate solution (30g/L). Weigh 3g of potassium permanganate dissolved in 100mL of potassium hydroxide solution (100g/L) of. 4.2.5 sulfur standard solution 4.2.5.1 preparation. Weigh 0.4430g benchmark anhydrous sodium sulfate (advance after 105 ℃ ~ 110 ℃ baking 1h, placed in a desiccator, cooled to room Temperature), was dissolved in double distilled water and transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing about 0.1mg sulfur. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4324.23-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 4324.23-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 4324.23-2012_English with my colleagues?Answer: Yes. 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