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YS/T 520.8-2007 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 520.8-2007: Chemical analysis of gallium. Part 8: Determination of indium content. The ethyl violet spectrophotometric method
Status: Valid

YS/T 520.8: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 520.8-2007	199	Add to Cart	3 days	Chemical analysis of gallium. Part 8: Determination of indium content. The ethyl violet spectrophotometric method	Valid
YS/T 520.8-2006	199	Add to Cart	2 days	Methods for chemical analysis of gallium. The ethyl violet photometric method for the determination of indium content	Obsolete

Similar standards

GB/T 4698.17 XB/T 619 YS/T 555.11 YS/T 540.2 YS/T 540.3 YS/T 540.1

Basic data

Standard ID: YS/T 520.8-2007 (YS/T520.8-2007)
Description (Translated English): Chemical analysis of gallium. Part 8: Determination of indium content. The ethyl violet spectrophotometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H14
Classification of International Standard: 77.120.70
Word Count Estimation: 6,652
Date of Issue: 2007-11-14
Date of Implementation: 2008-05-01
Older Standard (superseded by this standard): YS/T 520.8-2006
Regulation (derived from): NDRC Notice No. 77 of 2007
Issuing agency(ies): National Development and Reform Commission
Summary: This standard specifies the determination of indium gallium method. This standard applies to the determination of indium gallium. Measuring range: 0. 0005% to 0. 040% This section does not apply to thallium-containing gallium indium content.

YS/T 520.8-2007: Chemical analysis of gallium. Part 8: Determination of indium content. The ethyl violet 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 of gallium.Part 8. Determination of indium content.The ethyl violet spectrophotometric method ICS 77.120.70 H14 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 520.8-2006 Chemical analysis of gallium Part 8. Determination of indium content Ethyl Violet spectrophotometry Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued

Foreword

YS/T 520-2007 "Chemical analysis of gallium" Is the YS/T 520-2006 (formerly GB/T 4375-1984) amendments, divided into Part 12. --- Part 1. Determination of copper content of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline spectrophotometry --- Part 2. Determination of lead content of 4- (2-pyridyl) - resorcinol spectrophotometry --- Part 3. Determination of aluminum content Chromazurol S- tetradecyl pyridine bromide spectrophotometric method --- Part 4. Determination of iron content of 4,7-diphenyl-1,10-phenanthroline spectrophotometry --- Part 5. Determination of calcium content nitrous oxide - acetylene flame atomic absorption spectrometry --- Part 6. Determination of tin content salicylfluorone - cetyl trimethyl ammonium bromide, spectrophotometry --- Part 7. Determination of silicon content extraction - molybdenum blue spectrophotometric method --- Part 8. Determination of indium content of ethyl violet spectrophotometry --- Part 9. Determination of germanium content Phenylfluorone - polyethylene glycol octyl phenyl ether extraction spectrophotometric method --- Part 10. Determination of zinc content atomic absorption spectrometry --- Part 11. Determination of mercury content of the cold atomic absorption spectrometry --- Part 12. lead, copper, nickel, aluminum, indium and zinc Determination of chemical spectroscopy This section section 8. The partial replacement of YS/T 520.8-2006 (formerly GB/T 4375.8-1984). This part is YS/T 520.8-2006 "Chemical analysis of gallium - Part 8. Determination of indium content of ethyl violet spectrophotometry" Editorial finishing. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This standard by the Aluminum Corporation of China Shandong branch responsible for drafting. Drafters of this section. Chen Jianli, Zang Muwen, Sun Guo, Zhao Shali. The non-ferrous metal part by the National Standardization Technical Committee responsible for the interpretation. This part of the standard replaces the previous editions are. --- YS/T 520.8-2006 (formerly GB/T 4375.8-1984). Chemical analysis of gallium Part 8. Determination of indium content Ethyl Violet spectrophotometry

1 Scope

This section specifies the determination method gallium indium content. This section applies to the determination of gallium indium content. Measurement range. 0.0005% to 0.040%. This section does not apply to the determination of thallium-containing gallium indium content.

2 Method summary

Sample with nitric acid, sulfuric acid dissolved, hydrobromic acid, sulfuric acid to remove smoke tin, mercury bromide. Added 1.5mol/L sulfuric acid medium The potassium iodide, ethyl violet, indium generate ionic association, extracted with benzene. 619nm wavelength spectrophotometer measured absorbance.

3 Reagents

3.1 benzene. 3.2 ethanol. 3.3 nitrate (ρ1.42g/cm 3). 3.4 hydrobromide (ρ1.49g/cm 3). 3.5 sulfate (1 + 1). 3.6 sulfate (1 + 2). 3.7 HCl (1 + 1). 3.8 potassium iodide solution (6mol/L). the time is now equipped with. 3.9 sodium thiosulfate solution (20g/L). 3.10 ethyl violet solution (2g/L). 3.11 indium standard stock solution. Weigh 0.1209g spectroscopically pure indium oxide [(In2O3) ≥99.99%], hydrochloric acid was added 10mL (3.7), on a water bath heated to dissolve, add 50mL sulfuric acid (3.5) and evaporated to smoke, remove the cooling water of dissolved salts and moved 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 100μg of indium. 3.12 Indium standard solution. Pipette 50.00mL an indium standard stock solution (3.11) was placed in 500mL volumetric flask, add 10mL sulfuric acid (3.5), dilute to the mark and mix. This solution 1mL containing 10μg indium.

4 Instrument

Spectrophotometer.

5 Sample

The samples in sealed Teflon bottle, placed in 50 ℃ water bath until the sample is completely converted to a liquid state, shaken, cooled to Room temperature before use. Step 6 Analysis 6.1 Determination of the number of Independently measured twice and averaged. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 520.8-2007_English be delivered?

Answer: Upon your order, we will start to translate YS/T 520.8-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of YS/T 520.8-2007_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 520.8-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version YS/T 520.8-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 520.8-2007 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.