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Chemical analysis methods of aluminum hardeners. Part 10: Determination of potassium content. Flame atomic absorption spectrometric method
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YS/T 807.10-2012
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Basic data | Standard ID | YS/T 807.10-2012 (YS/T807.10-2012) | | Description (Translated English) | Chemical analysis methods of aluminum hardeners. Part 10: Determination of potassium 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 | 7,716 | | 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 potassium content in the aluminum alloy side given method. This standard applies to aluminum alloy with potassium content. Determination range of 0. 0050% to 1. 00% | YS/T 807.10-2012: Chemical analysis methods of aluminum hardeners. Part 10: Determination of potassium content. Flame atomic absorption spectrometric method
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Chemical analysis methods of aluminum hardeners.Part 10. Determination of potassium content.Flame atomic absorption spectrometric method
ICS 77.120.10
H12
People's Republic of China Nonferrous Metals Industry Standard
Intermediate aluminum alloys -
Determination of potassium content. Part 10
Flame Atomic Absorption Spectrometry
Part 10. Determinationofpotassiumcontent-
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 section 10.
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. Shi Lei, Wu Yu Qiang, Xue Ning, Zhang Weihua, Zhang Yanqiu, Liu Sha, Dengsu Ping, Cui cool.
Intermediate aluminum alloys -
Determination of potassium content. Part 10
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
YS/T in this part 807 specifies the method for determination of aluminum alloy with potassium content.
This section applies to the determination of aluminum alloy with potassium content. Determination range of 0.0050% to 1.00%.
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 766.5nm at measuring the absorbance of potassium.
3 Reagents
Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium.
3.1 aluminum (≥99.99%, no potassium).
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, plus graded
The 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, diluted with water
To the mark, and mix.
3.6 Potassium standard stock solution (1.0mg/mL). Weigh 1.9068g reference potassium chloride (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. 1mL 1.0mg solution containing potassium.
3.7 potassium standard solution (0.010mg/mL). Pipette 10.00mL potassium standard stock solution (3.6) in 1000mL volumetric flask with water
Dilute to volume, and mix. This solution 1mL containing 0.010mg potassium.
4 Instrument
Atomic absorption spectrometer, with a potassium 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 features potassium 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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