YS/T 807.11-2012 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 807.11-2012	279	Add to Cart	3 days	Chemical analysis methods of aluminum hardeners. Part 11: Determination of sodium content. Flame atomic absorption spectrometric method	Obsolete

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Basic data

Standard ID: YS/T 807.11-2012 (YS/T807.11-2012)
Description (Translated English): Chemical analysis methods of aluminum hardeners. Part 11: Determination of sodium content. Flame atomic absorption spectrometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H12
Classification of International Standard: 77.120.10
Word Count Estimation: 7,782
Regulation (derived from): Ministry of Industry and Information Technology Bulletin No. 55 of 2012; industry standard filing Notice 2013 No. 1 (Total No. 157);
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the aluminum alloy in sodium content determination. This standard applies to aluminum alloy with sodium content. Measuring range: 0. 0050% to 0. 50%.

YS/T 807.11-2012: Chemical analysis methods of aluminum hardeners. Part 11: Determination of sodium content. Flame atomic absorption spectrometric 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.
Chemical analysis methods of aluminum hardeners.Part 11. Determination of sodium content.Flame atomic absorption spectrometric method ICS 77.120.10 H12 People's Republic of China Nonferrous Metals Industry Standard Intermediate aluminum alloys - Part 11. Determination of sodium content Flame Atomic Absorption Spectrometry Part 11. Determinationofsodiumcontent- Issued on. 2012-11-07 2013-03-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 807-2012 "aluminum master alloy chemical analysis method" is divided into 14 parts. --- Part 1. Determination of iron content dichromate method; --- Part 2. Determination of manganese content Potassium periodate spectrophotometric method; --- Part 3. Determination of nickel by titration with EDTA; --- Part 4. Determination of chromium content ammonium ferrous sulfate titration; --- Part 5. Determination of zirconium content EDTA titration; --- Part 6. Determination of boron ion selective electrode method; --- Part 7. Determination of beryllium content Eriochrome cyanide blue R spectrophotometry; --- Part 8. Determination of antimony content Potassium iodide spectrophotometry; --- Part 9. Determination of bismuth content of potassium iodide spectrophotometry; --- Part 10. Determination of potassium content by flame atomic absorption spectrometry; --- Part 11. Determination of sodium content by flame atomic absorption spectrometry; --- Part 12. Determination of copper content of sodium thiosulfate titration; --- Part 13. Determination of vanadium content ammonium ferrous sulfate titration; --- Part 14. Determination of strontium EDTA titration. This section YS/T Part 11 807. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting units. Aluminum Corporation of China Zhengzhou Research Institute, China Nonferrous Metals Industry Quality Standards and Metrology Institute The study. Participated in the drafting of this section. Neimengguhuo coal Hongjunlvdian Co., Northeast Light Alloy limited liability company. The main drafters of this section. Benji, Kuang Yuyun, Wu Yu Qiang, Zhang Wei-hua, the package Fang Fang, Wei cold, Liangbao Jiang, Li Yuanyuan. Intermediate aluminum alloys - Part 11. Determination of sodium content Flame Atomic Absorption Spectrometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This section YS/T 807 specifies the method for determination of aluminum alloy with sodium content. This section applies to the determination of aluminum alloy with sodium content. Determination range of 0.0050% to 0.50%.

2 Method summary

A specimen in a hydrochloric acid, hydrogen peroxide was dissolved, was added as CsCl ionization inhibitor, using air - acetylene flame, flame atomic absorption spectrometry Wavelength 589.0nm at measuring the absorbance of sodium.

3 Reagents

Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling water or sodium free distilled water. 3.1 aluminum (≥99.99%, no sodium). 3.2 hydrochloric acid (11), high-purity reagents BVⅢ level. 3.3 Hydrogen peroxide (ρ = 1.10g/mL), pure class distinctions. 3.4 cesium chloride solution (25g/L). Weigh 2.5g of cesium chloride (high purity), was dissolved in 100mL of water, and mix. 3.5 aluminum solution (20mg/mL). Weigh 20.000g aluminum (3.1) placed in 500mL Teflon beaker, covered table dish, graded by adding Total of 600mL of hydrochloric acid (3.2), was slowly heated up to complete dissolution and cooled. The solution is transferred to 1000mL volumetric flask, dilute to the mark with water Degree, and mix. 3.6 Sodium standard stock solution (1.0mg/mL). Weigh 2.5421g Sodium chloride reference (previously calcined at 450 ℃ ~ 500 ℃ 1.5h ~ 2h, and cooled to room temperature in the dryer) was dissolved in 300mL beaker and transferred to 1000mL volumetric flask, dilute to the mark with water, mix uniform. Store in a dry polyethylene bottle. This solution 1mL containing 1.0mg sodium. 3.7 sodium standard solution (0.010mg/mL). Pipette 10.00mL sodium standard stock solution (3.6) in 1000mL volumetric flask, dilute with water Diluted to volume, and mix. This solution 1mL containing 0.010mg sodium.

4 Instrument

Atomic absorption spectrometer, with a sodium hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Sensitivity. consistent with the measurement sample solution matrix solution, characterized in sodium concentration should not exceed 0.5μg/mL. --- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed the average absorbance of 1.0%; ......

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