GB/T 4324.15-2008 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4324.15-2008: Methods for chemical analysis of tungsten -- Determination of magnesium content -- The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry Status: Valid GB/T 4324.15: Historical versions
Basic dataStandard ID: GB/T 4324.15-2008 (GB/T4324.15-2008)Description (Translated English): Methods for chemical analysis of tungsten -- Determination of magnesium content -- The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H63 Classification of International Standard: 77.120.99 Word Count Estimation: 9,960 Date of Issue: 2008-06-09 Date of Implementation: 2008-12-01 Older Standard (superseded by this standard): GB/T 4324.15-1984; GB/T 4324.16-1984 Regulation (derived from): National Standard Approval Announcement 2008 No.9 (Total No.122) Issuing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 trioxide, blue tungsten, purple tungsten, carbide, tungstate, metatungstate, paratungstic acid determination by the magnesium content. This method is suitable for tungsten powder, tungsten, tungsten trioxide, blue tungsten, purple tungsten, carbide, tungstate, metatungstate, Chung magnesium tungstate by Determination. Measurement range: 0. 0003% to 0. 050%. GB/T 4324.15-2008: Methods for chemical analysis of tungsten -- Determination of magnesium content -- The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry---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. Determination of magnesium content. The flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry ICS 77.120.99 H63 National Standards of People's Republic of China Replacing GB/T 4324.15 ~ 4324.16-1984 Chemical analysis of tungsten Determination of the amount of magnesium Flame atomic absorption spectrometry and inductively coupled plasma Atomic Emission Spectrometry Posted 2008-12-01 2008-06-09 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 27 parts. GB/T 4324.1 tungsten chemical analysis of lead and cadmium content was measured square wave polarography; GB/T 4324.2 chemical analysis of tungsten bismuth content was measured by potassium iodide - brucine spectrophotometry; GB/T 4324.3 Determination of chemical analysis of tungsten tin weight polyethylene glycol octyl phenyl ether - benzene spectrophotometric; GB /4324.4 chemical analysis of tungsten Determination of antimony content T malachite green spectrophotometry; GB/T 4324.5 tungsten chemical analysis of arsenic content - Molybdenum blue spectrophotometric method; Determination of GB/T 4324.6 tungsten chemical analysis of iron content phenanthroline spectrophotometry; Determination of GB/T 4324.7 chemical analysis of tungsten cobalt content of cobalt reagent spectrophotometry; GB /Inductively coupled plasma atomic T 4324.8 chemical analysis of tungsten nickel content of emission spectrometry flame atomic absorption Income spectroscopy and dimethylglyoxime gravimetric method; Determination of GB/T 4324.10 chemical analysis of tungsten copper content of the new copper reagent spectrophotometry; Determination of chromium GB/T 4324.11 tungsten chemical analysis of aluminum content Azure S Spectrophotometry; GB/T 4324.12 chemical analysis of tungsten - Determination of the amount of silicon chloride - Silicon molybdenum blue spectrophotometric method; Inductively GB/T 4324.13 chemical analysis of tungsten calcium coupled plasma atomic emission spectrometry; GB/T 4324.15 Flame atomic chemical analysis of tungsten amount of magnesium absorption spectrometry and inductively coupled plasma atomic Emission spectrometry; Atomic GB/T 4324.17 chemical analysis of tungsten amount of sodium absorption spectrometry; Atomic GB/T 4324.18 chemical analysis of tungsten amount of potassium absorption spectrometry; GB/T 4324.19 chemical analysis of tungsten titanium content measured two methane antipyrine spectrophotometry; Determination of GB/T 4324.20 chemical analysis of tungsten vanadium tantalum reagent spectrophotometry; GB /4324.21 chemical analysis of tungsten chromium content measured T-diphenyl-carbon acid dihydrazide spectrophotometry; GB/T 4324.22 Determination of chemical analysis of tungsten manganese content of formaldehyde oxime spectrophotometry; Determination of GB/T 4324.23 chemical analysis of tungsten combustion of sulfur content - conductance method; GB/T 4324.24 chemical analysis of tungsten determination of phosphorus content of beryllium is carrying precipitating agent - molybdenum blue spectrophotometric method; GB/T 4324.25 chemical analysis of tungsten - Determination of oxygen inert gas fusion coulometric titration; GB/T 4324.26 Determination of chemical analysis of tungsten nitrogen Chennai formula reagent spectrophotometry; Determination of GB/T 4324.27 chemical analysis of tungsten carbon combustion - coulometric titration method; GB/T 4324.28 chemical analysis of tungsten and molybdenum contents - Thiocyanate spectrophotometric; GB/T 4324.29 chemical analysis of tungsten post-chlorinated volatile residue amount Gravimetric method; GB/T 4324.30 chemical analysis of tungsten determination of loss on ignition - Gravimetric method. This is Part 15 GB/T 4324's. This Part replaces GB/T 4324.15-1984 "chemical analysis of tungsten Chlorophonazo Ⅰ spectrophotometric determination of magnesium content" and GB/T 4324.16-1984 "chemical analysis of tungsten atomic absorption spectrophotometric determination of magnesium content." This portion of the GB/T 4324.15-1984 and GB/T 4324.16-1984 main changes are as follows. --- Determination method increases the inductively coupled plasma atomic emission spectrometry, canceled Chlorophonazo Ⅰ spectrophotometric method; --- Scope added tungsten blue, purple tungsten, tungsten carbide, ammonium paratungstate, measured by the scope of "0.0003% to 0.020%" is replaced by "0.0003% to 0.050%"; --- In order to ensure the application of different sample dissolution methods in the "sample" in the fine, the average particle size of the tungsten carbide coarse particles were defined; --- The "measurement frequency" in the "three" to "two"; --- Tungsten powder, tungsten, tungsten oxide, tungstic acid, ammonium paratungstate were modified sample dissolution method, an increase of tungsten blue, purple tungsten, tungsten carbide, metatungstate Ammonium dissolving method; --- In the "working curve drawing" in the switch matrix matching calibration method instead of the sample standard addition method; --- Increasing the foreword, precision and quality assurance and control content. Part 2 of this method for the arbitration method. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. This section Zhuzhou Cemented Carbide Group Co., Ltd. is responsible for drafting. This part of the participation of Zigong Carbide limited liability company, Chongyi Zhangyuan Tungsten Co., Ltd., Central South University Institute of powder metallurgy Drafted. The main drafters of this section. Zhang Ying, Guo Peng, Zhangjiang Feng. The main part of the method validation person. Li Huiling, Yun-Xia Zhang, Li Ping. The main part of the method validation by. Bong Dong Wen. This part of the standard replaces the previous editions are. --- GB/T 4324.15-1984, GB/T 4324.16-1984. Chemical analysis of tungsten Determination of the amount of magnesium Flame atomic absorption spectrometry and inductively coupled plasma Atomic Emission Spectrometry Method 1 flame atomic absorption spectrometry1 ScopeThis method provides for the determination of tungsten powder, tungsten trioxide, tungsten, tungsten blue, purple tungsten, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate magnesium content method. This method is suitable for tungsten powder, tungsten measure, tungsten trioxide, tungsten blue, purple tungsten, tungsten carbide, tungsten acid, ammonium metatungstate, ammonium paratungstate magnesium content set. Measurement range. 0.0003% to 0.050%.2 Method summaryTungsten powder, tungsten bar, fine (in) tungsten carbide particles with hydrogen peroxide decomposition; blue tungsten with hydrogen peroxide and ammonia decomposition; tungsten oxide, tungstate, paratungstate Ammonium metatungstate aqueous ammonia decomposition; purple tungsten, tungsten carbide coarse particles after firing into tungsten trioxide with ammonia decomposition. Hydrogen peroxide, citric acid complex Co-tungsten, determination of magnesium content in atomic absorption spectrometer.3 ReagentsUnless otherwise indicated, used in the analysis confirmed only for the gifted class pure reagents and double distilled water. 3.1 Hydrogen peroxide (ρ1.10g/mL). Ammonia 3.2 (1 + 1). 3.3 citric acid solution (500g/L). 3.4 Magnesium standard stock solution. Weigh 0.1658g pre 1h burning magnesium oxide by 780 ℃ (magnesium oxide content of not less than 99.99%), placed in a beaker of 250mL, was added 20mL of hydrochloric acid (1 + 1), low dissolved with heating, cooled to room temperature. The solution was transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 100μg magnesium. 3.5 Magnesium standard solution. Pipette 10.00mL magnesium standard stock solution (3.4) into 100mL volumetric flask, dilute to the mark with water, mix uniform. This solution 1mL containing 10μg magnesium. 3.6 tungsten substrate. magnesium content is less than 0.0001%.4 InstrumentAtomic absorption spectrometer, with a magnesium hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Characteristic concentration. in the solution was measured and consistent substrate solution, wherein the concentration of magnesium is not more than 0.01μg/mL. --- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed 1.5% of the average absorbance; With the lowest concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum The average concentration of 0.5% absorbance. --- Linear curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment of the segment Ratio should not be less than 0.7. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4324.15-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 4324.15-2008_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 4324.15-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4324.15-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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