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Chemical analysis methods of aluminum hardeners. Part 6: Determination of boron content. The ion selective electrode method
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YS/T 807.6-2012
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Basic data | Standard ID | YS/T 807.6-2012 (YS/T807.6-2012) | | Description (Translated English) | Chemical analysis methods of aluminum hardeners. Part 6: Determination of boron content. The ion selective electrode method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H12 | | Classification of International Standard | 77.120.10 | | Word Count Estimation | 6,650 | | 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 with boron content determination method. This standard applies to aluminum alloy with boron content. Measuring range: 5. 00% 10. 00%. | YS/T 807.6-2012: Chemical analysis methods of aluminum hardeners. Part 6: Determination of boron content. The ion selective electrode method
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Chemical analysis methods of aluminum hardeners.Part 6. Determination of boron content.The ion selective electrode method
ICS 77.120.10
H12
People's Republic of China Nonferrous Metals Industry Standard
Intermediate aluminum alloys -
Part 6. Determination of boron content
Ion Selective Electrode
Part 6. Determinationofboroncontent-
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 6 807.
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 Ltd., Fushun Aluminum Co., Ltd.
The main drafters of this section. Wu Yu Qiang, Liyue Ping, Zhang Jie, Dengsu Ping, former Jianchang, arrows Ying, Hong Jiaji, Tangzhen Ming.
Intermediate aluminum alloys -
Part 6. Determination of boron content
Ion Selective Electrode
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 boron content.
This section applies to the determination of aluminum alloy with boron content. Measurement range. from 5.00% to 10.00%.
2 Method summary
Samples with hydrochloric acid, nitric acid and sulfuric acid - phosphoric acid mixture is dissolved with hydrofluoric acid in a sample of boron trifluoride to make into fluoroborate ion, hydroxide
Sodium hydroxide solution to adjust the pH value of 5 to 6, the electrode determination of boron content selecting fluoroborate ion.
3 Reagents
Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium.
3.1 potassium chloride, pure class distinctions.
3.2 Agar.
3.3 Hydrofluoric acid (ρ = 1.14g/mL).
3.4 phosphoric acid (ρ = 1.69g/mL).
3.5 nitric acid (11).
3.6 hydrochloride (11).
3.7 sulfate (11).
3.8 Sodium hydroxide solution (200g/L), stored in a polyethylene bottle.
3.9 sulfuric acid - phosphoric acid mixed solution. 25mL was added phosphoric acid (3.4) and 25mL sulfuric acid (3.7) in 100mL flask, add water to about
90mL, mix, cooled, diluted with water to volume, and mix.
3.10 boron standard stock solution (1.0mg/mL). Weigh 2.8597g was dried in a vacuum dryer boronic acid (excellent pure) to
400mL beaker, add 200mL water, slightly hot and completely dissolved, cooled to room temperature and transferred to 500mL volumetric flask, dilute to the mark with water
Degree of mixing, stored in polyethylene bottles. This solution 1mL containing 1.0mg boron.
3.11 boron standard solution (0.20mg/mL). Pipette 20.00mL boron standard stock solution (3.10) in 100mL flask with water
Dilute to volume, mix and stored in polyethylene bottles. This solution 1mL containing 0.20mg boron.
3.12 boron standard solution (0.15mg/mL). Pipette 15.00mL boron standard stock solution (3.10) in 100mL flask with water
Dilute to volume, mix and stored in polyethylene bottles. This solution 1mL containing 0.15mg boron.
3.13 boron standard solution (0.10mg/mL). Pipette 10.00mL boron standard stock solution (3.10) in 100mL flask with water
Dilute to volume, mix and stored in polyethylene bottles. This solution 1mL containing 0.10mg boron.
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