YS/T 807.9-2012 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 807.9-2012	239	Add to Cart	3 days	Chemical analysis methods of aluminum hardeners. Part 9: Determination of bismuth content. Potassium iodide spectrophotometric method	Obsolete

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Basic data

Standard ID: YS/T 807.9-2012 (YS/T807.9-2012)
Description (Translated English): Chemical analysis methods of aluminum hardeners. Part 9: Determination of bismuth content. Potassium iodide spectrophotometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H12
Classification of International Standard: 77.120.10
Word Count Estimation: 6,635
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 method for determination of bismuth. This standard applies to aluminum alloy with bismuth content. Measuring range: 1. 00% 11. 00%.

YS/T 807.9-2012: Chemical analysis methods of aluminum hardeners. Part 9: Determination of bismuth content. Potassium iodide spectrophotometric 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 9. Determination of bismuth content.Potassium iodide spectrophotometric method ICS 77.120.10 H12 People's Republic of China Nonferrous Metals Industry Standard Intermediate aluminum alloys - Part 9. Determination of bismuth content Potassium iodide spectrophotometry Part 9. Determinationofbismuthcontent- 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 is Part 9 YS/T 807-2012 in. 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. Liaoning Zhongwang Group Co., Ltd., Shandong Yankuang Light Alloy Co., Ltd. The main drafters of this section. Zhang Wei Hua, Xue Ning, Kuang Yuyun, Qu Feng Jiao, Wei Yanqin, Sun Mingjie, Wang Zhan Wu, Geng Yuhuan, Li hole. Intermediate aluminum alloys - Part 9. Determination of bismuth content Potassium iodide spectrophotometry 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 bismuth content. This section applies to the determination of aluminum alloy with bismuth content. Determination of the range of 1.00% - 11.00%.

2 Method summary

Sample was dissolved with sodium hydroxide, adding hydrogen peroxide so that silicide decomposed, acidified with nitric acid, in 1mol/L ~ 2mol/L sulfuric acid medium In, Bi (Ⅲ) with potassium iodide to form a yellow soluble complexes, at 465nm wavelength spectrophotometer to measure absorbance.

3 Reagents

Unless otherwise indicated in the analysis using only the gifted class pure reagents and sub-boiling distilled water or potassium. 3.1 sulfate (11). 3.2 Sodium hydroxide solution (400g/L). 3.3 Hydrogen peroxide (ρ = 1.10g/mL). 3.4 nitric acid (11). 3.5 urea solution (5g/L). 3.6 thiourea solution (100g/L). Weigh 10g of thiourea dissolved in 100mL of water, if necessary, by flash filtration paper. Formulated with time. 3.7 potassium iodide solution (200g/L). Weigh 20g 2g of potassium iodide and ascorbic acid, dissolved in 100mL of water. Formulated with time. 3.8 Standard bismuth stock solution (1.0mg/mL). Weigh 1.0000g bismuth (≥99.95%) into 300mL beaker, add 50mL of nitric acid (3.4), cover sheet pan, heated slowly to dissolve completely, cooled to room temperature, transferred to 1000mL volumetric flask [previously added 50mL of nitric acid (3.4)], dilute with water to volume, and mix. This solution 1mL containing 1.0mg bismuth. 3.9 bismuth standard solution (0.10mg/mL). Pipette 50.00mL bismuth standard stock solution (3.8) previously added in 50mL of nitric acid (3.4) The 500mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 0.10mg bismuth.

4 Instrument

Spectrophotometer.

5 Sample

The sample was processed into a thickness of less than 1mm debris. ......

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