GB/T 4325.13-2013 English PDFUS$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4325.13-2013: Methods for chemical analysis of molybdenum -- Part 13: Determination of calcium content -- Flame atomic absorption spectrometry Status: Valid GB/T 4325.13: Historical versions
Basic dataStandard ID: GB/T 4325.13-2013 (GB/T4325.13-2013)Description (Translated English): Methods for chemical analysis of molybdenum -- Part 13: Determination of calcium content -- Flame atomic absorption spectrometry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H63 Classification of International Standard: 77.120.99 Word Count Estimation: 7,782 Older Standard (superseded by this standard): GB/T 4325.13-1984; GB/T 4325.14-1984 Regulation (derived from): National Standards Bulletin 2013 No. 6 Issuing agency(ies): General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 method for the determination of molybdenum in calcium. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate in calcium content. Measuring range: 0. 0005% to 0. 030 % GB/T 4325.13-2013: Methods for chemical analysis of molybdenum -- Part 13: Determination of calcium content -- Flame atomic absorption 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 molybdenum Part 13.. Determination of calcium content Flame atomic absorption spectrometry. ICS 77.120.99 H63 National Standards of People's Republic of China Replacing GB/T 4325.13-1984, GB/T 4325.14-1984 Chemical analysis of molybdenum Part 13. Determination of calcium Flame Atomic Absorption Spectrometry Part 13. Determinationofcalciumcontent- Issued on. 2013-05-09 2014-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 4325 "chemical analysis of molybdenum" is divided into 26 parts. --- Part 1. Determination of lead content - Graphite furnace atomic absorption spectrometry; --- Part 2. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 3. Determination of bismuth content - atomic fluorescence spectrometry; --- Part 4. Determination of tin content by atomic fluorescence spectrometry; --- Part 5. Determination of antimony content - Atomic Fluorescence Spectrometry; --- Part 6. Determination of arsenic content by atomic fluorescence spectrometry; --- Part 7. Determination of the amount of iron phenanthroline spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 8. Determination of cobalt content of cobalt reagents spectrophotometry and flame atomic absorption spectrometry; --- Part 9. Determination of the amount of nickel dimethylglyoxime spectrophotometric method and the flame atomic absorption spectrometry; --- Part 10. Determination of copper content - Flame atomic absorption spectrometry; --- Part 11. Determination of aluminum content of chromium azure S spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 12. silicon content - Inductively coupled plasma atomic emission spectrometry; --- Part 13. Determination of calcium content by flame atomic absorption spectrometry; --- Part 14. Determination of magnesium content - Flame atomic absorption spectrometry; --- Part 15. Determination of sodium content by flame atomic absorption spectrometry; --- Part 16. Determination of potassium content by flame atomic absorption spectrometry; --- Part 17. Determination of titanium content of two methane antipyrine spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 18. Determination of the amount of vanadium tantalum reagent spectrophotometry and inductively coupled plasma atomic emission spectrometry; --- Part 19. Determination of chromium content of diphenyl carbon acid dihydrazide spectrophotometry; --- Part 20. Determination of manganese content by flame atomic absorption spectrometry; --- Part 21. Determination of the amount of carbon and sulfur content of the high-frequency combustion infrared absorption method; --- Part 22. Determination of phosphorus content - Molybdenum blue spectrophotometric method; --- Part 23. Determination of the oxygen and nitrogen inert gas fusion infrared absorption method - thermal conductivity method; --- Part 24. Determination of tungsten content - Inductively coupled plasma atomic emission spectrometry; --- Part 25. Determination of the amount of hydrogen in the inert gas fusion infrared absorption method/thermal conductivity method; --- Part 26. aluminum, magnesium, calcium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, arsenic, cadmium, tin, antimony, tungsten, lead and bismuth content - Inductively coupled Co-Plasma Mass Spectrometry. This section GB/T Part of 134,325. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 4325.13-1984 "chemical analysis of molybdenum glyoxal bis (2-hydroxy-aniline) spectrophotometric determination of calcium" and GB/T 4325.14-1984 "chemical analysis of molybdenum by atomic absorption spectrophotometry calcium." This portion of the GB/T 4325.13- 1984 and GB/T 4325.14-1984 compared to the main technical changes are as follows. --- Remove the "glyoxal bis (2-hydroxy-aniline) spectrophotometry"; --- Samples processed by 8-hydroxy quinoline - butanol to citric acid complex; --- Measured by the oxygen barrier air - acetylene flame measured the organic phase to the air - acetylene flame measured the water phase; --- Measurement range is adjusted to 0.0005% ~ 0.030%; --- Increased repeatability terms; --- Increased test reporting requirements. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is drafted. Ganzhou Nonferrous Metallurgy Research Institute, Guangzhou Nonferrous Metal Research Institute, Beijing Nonferrous Metal Research Institute. The main drafters of this section. Tao, Li Zhiyong, Zhongdao Guo, Chen Xiaolan, Redevex school, Xiong Xiaoyan, Zhang Diankai. This part of the standard replaces the previous editions are. --- GB/T 4325.13-1984, GB/T 4325.14-1984. Chemical analysis of molybdenum Part 13. Determination of calcium Flame Atomic Absorption Spectrometry1 ScopeGB/T 4325 This section specifies the method for determination of molybdenum of calcium. This section applies to molybdenum powder, molybdenum, molybdenum trioxide, ammonium molybdate determination of calcium. Measurement range. 0.0005% to 0.030%.2 Method summarySample decomposition of hydrogen peroxide, citric acid, hydrochloric acid medium, using standard addition method using air - acetylene flame atomic absorption of light Spectrometer to measure calcium absorbance at the wavelength of 422.7nm, and calculate the amount of calcium.3 ReagentsUnless otherwise indicated, this part of the reagents used are in line with national standards or industry standard analytical reagent, the water is deionized water. 3.1 paramolybdate (w≥99.99%). 3.2 Hydrogen peroxide (30%), pure class distinctions. 3.3 hydrochloric acid (ρ = 1.19g/mL), pure class distinctions. 3.4 citric acid (500g/L), pure class distinctions. 3.5 Calcium standard stock solution. Weigh 2.4970 grams of calcium carbonate (mass fraction ≥99.99%) (pre-bake at 105 ℃ 1h, and in the dryer Cooled to room temperature) in the 250mL beaker, add 30mL water, 15mL hydrochloric acid (3.3), on the home heating furnace until completely dissolved, boil rid Carbon dioxide, after cooling transferred 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 1.0mg of calcium. 3.6 Calcium standard solution. Pipette 5.0mL calcium standard stock solution (3.5), placed in 500mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 10μg calcium.4 InstrumentAtomic absorption spectrometer, with a calcium hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Characteristic concentration. measurement solution with the matrix consistent solution, characterized in calcium concentration should not exceed 0.05μg/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 according to concentration, divided into five sections, the difference between the absorbance of the absorbance difference between the highest and the lowest segment segment Ratio should not be less than 0.7.5 SampleMolybdenum should smash through the 0.75mm standard sieve. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4325.13-2013_English be delivered?Answer: Upon your order, we will start to translate GB/T 4325.13-2013_English as soon as possible, and keep you informed of the progress. 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