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Chemical analysis methods of aluminum hardeners. Part 1: Determination of iron content. Potassium bichromate titrimetric method
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YS/T 807.1-2012
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Basic data | Standard ID | YS/T 807.1-2012 (YS/T807.1-2012) | | Description (Translated English) | Chemical analysis methods of aluminum hardeners. Part 1: Determination of iron content. Potassium bichromate titrimetric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 77.120.10 | | Word Count Estimation | 6,639 | | 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 Determination of iron content. This standard applies to aluminum alloy with iron content. Measuring range: 3. 5% to 25. 0% | YS/T 807.1-2012: Chemical analysis methods of aluminum hardeners. Part 1: Determination of iron content. Potassium bichromate titrimetric method
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Chemical analysis methods of aluminum hardeners.Part 1. Determination of iron content.Potassium bichromate titrimetric method
ICS 77.120.10
H12
People's Republic of China Nonferrous Metals Industry Standard
Intermediate aluminum alloys -
Part 1. Determination of iron content
Dichromate method
Part 1. Determinationofironcontent-
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 persulfate oxidation - 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 1 807.
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. Northeast Light Alloy Co., Ltd., Fushun Aluminum Co., Ltd.
The main drafters of this section. Zhou Bing, Liu Sha, Cui cool, count Jubilee, Shi Lei, Wang Meiqi, Jong-chol, Liu Shuangqing, Luwan Xiang, Shi Lixin.
Intermediate aluminum alloys -
Part 1. Determination of iron content
Dichromate method
Warning --- personnel should use this standard regular laboratory work experience. This standard does not point out all possible security asked
question. 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 iron content.
This section applies to the determination of the intermediate aluminum alloy iron content. Measuring range. 3.5% to 25.0%.
2 Method summary
In acidic solution, direct titration with potassium dichromate standard solution of divalent iron ions, excess potassium dichromate will diphenylamine sulfonate indicator
Oxidation of purple, is the end, whereby the determination of iron content.
3 Reagents
Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium.
3.1 ammonium fluoride solution (100g/L).
3.2 sulfuric acid - phosphoric acid mixed. 300mL sulfuric acid (13) was slowly added 100mL phosphate (ρ = 1.69g/mL), and mix.
3.3 diphenylamine sulfonate indicator solution (4g/L).
3.4 standard potassium dichromate solution (0.0030mol/L). Weigh 1.7558g baseline potassium dichromate (previously dried at 150 ℃ and 2h
Desiccator to cool to room temperature), placed in 300mL beaker, dissolved in water and transferred to 2000mL volumetric flask, dilute to the mark with water,
Mix well.
4 Sample
The sample was processed into a thickness of less than 1mm debris.
Step 5 Analysis
5.1 Sample
Weigh 0.1g sample (4), accurate to 0.0001g.
5.2 Determination of the number of
Independently measured twice and averaged.
5.3 Determination
5.3.1 The sample (5.1) into 400mL beaker, add 15mL ammonium fluoride solution (3.1), 20mL sulfuric acid - phosphoric acid mixture
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