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YS/T 575.12-2007 English PDF

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Q: Should I purchase the latest version YS/T 575.12-2007?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 575.12-2007 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.

US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 575.12-2007: Methods for chemical analysis of bauxite - Part 12: Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric method
Status: Valid

YS/T 575.12: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 575.12-2007	199	Add to Cart	3 days	Methods for chemical analysis of bauxite - Part 12: Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric method	Valid
YS/T 575.12-2006	279	Add to Cart	3 days	Methods for chemical analysis of bauxite - Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric method	Obsolete

Similar standards

GB/T 8719 YB/T 042 YS/T 575.1 YS/T 575.27 YS/T 575.7 YS/T 575.19

Basic data

Standard ID: YS/T 575.12-2007 (YS/T575.12-2007)
Description (Translated English): Methods for chemical analysis of bauxite - Part 12: Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: Q52;D42
Classification of International Standard: 71.100.10
Word Count Estimation: 6,637
Date of Issue: 2007-11-14
Date of Implementation: 2008-05-01
Older Standard (superseded by this standard): YS/T 575.12-2006
Regulation (derived from): NDRC Notice No. 77 of 2007
Issuing agency(ies): National Development and Reform Commission
Summary: This standard specifies the bauxite method for determination of vanadium pentoxide. This standard applies to bauxite in the determination of vanadium pentoxide, measuring range: 0. 005 to 0. 400%.

YS/T 575.12-2007: Methods for chemical analysis of bauxite - Part 12: Determination of vanadium pentoxide content - N-benzoy-N-phenythyroxy lamine photometric 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.
Methods for chemical analysis of bauxite.Part 12. Determination of vanadium pentoxide content.N-benzoy-N-phenythyroxy lamine photometric method ICS 71.100.10 Q52 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 575.12-2006 Methods for chemical analysis of bauxite - Part 12. Determination of the content of vanadium pentoxide Benzoyl phenylhydroxylamine photometric method Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued

Foreword

YS/T 575-2007 "chemical analysis of bauxite -" Is the YS/T 575-2006 (formerly GB/T 3257-1999) amendments A total of 24 parts. --- Part 1. aluminum oxide content - EDTA titration --- Part 2. silica content - Gravimetric - molybdenum blue spectrophotometry --- Part 3. Determination of silica content molybdenum blue photometric --- Part 4. iron oxide content - Potassium dichromate titration --- Part 5. Determination of iron oxide content phenanthroline spectrophotometry --- Part 6. Determination of titanium dioxide content di Zhao DAM spectrophotometry --- Part 7. calcium oxide content - Flame Atomic Absorption Spectrometry --- Part 8. magnesium oxide content - Flame Atomic Absorption Spectrometry --- Part 9. potassium hydroxide, sodium oxide content - Flame Atomic Absorption Spectrometry --- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry --- Part 11. chromium oxide content - Flame Atomic Absorption Spectrometry --- Part 12. Determination of vanadium pentoxide content of benzoyl phenylhydroxylamine photometric method --- Part 13. Determination of zinc content by flame atomic absorption spectrometry --- Part 14. Determination of total rare earth oxide Tribromoarsenazo spectrophotometry --- Part 15. Determination of gallium oxide content of rhodamine B extraction spectrophotometry --- Part 16. Determination of phosphorus pentoxide molybdenum blue photometric --- Part 17. Determination of sulfur content - Combustion - iodometric method --- Part 18. Determination of total carbon content - Combustion - non-aqueous titration --- Part 19. Determination of burning weight reduction method --- Part 20. pre-dried sample preparation --- Part 21. Determination of organic carbon titration --- Part 22. Analysis of samples moisture intrudes content - Gravimetric method --- Part 23. Determination of the chemical composition of the X-ray fluorescence spectrometry --- Part 24. Determination of carbon and sulfur content infrared absorption method This is Part 12. The partial replacement of YS/T 575.12-2006 (formerly GB/T 3257.12-1999). This section is amended to YS/T 575.12-2006, compared with YS/T 575.12-2006, the main changes are as follows. --- The drying temperature of the sample unified 110 ℃ ± 5 ℃; --- Increased precision. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part of the Aluminum Corporation of China Zhengzhou Research Institute is responsible for drafting. This section drafted by the Aluminum Corporation of China Zhengzhou Research Institute. The main drafters of this section. Guo Yongheng, Road Pui dry, Mawen Min. 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 575.12-2006 (formerly GB/T 3257.12-1999). Methods for chemical analysis of bauxite - Part 12. Determination of the content of vanadium pentoxide Benzoyl phenylhydroxylamine photometric method

1 Scope

This section provides the determination of vanadium pentoxide content in bauxite. This section applies to the determination of bauxite vanadium pentoxide content measurement range. 0.005 to 0.400%.

2 principle of the method

First sample sintered sodium peroxide, after a short melting the frit dissolved in water, filtered, iron and titanium hydroxide to remove iron and titanium. The filtrate was acidified and diluted. An aliquot of the solution was treated with potassium permanganate oxidation of all of the vanadium to pentavalent state. Hydrochloric acid solution and then extracted with benzene vanadium Formyl-phenylhydroxylamine complex into chloroform. Extraction spectrophotometric determination of the amount of vanadium by the spectroscopic.

3 Reagents

3.1 sodium peroxide. Note. Sodium peroxide should be protected against moisture, once agglomeration that is not available. 3.2 iron oxide (including V2O5 < 0.001%). 3.3 sodium sulfate solution (10g/L). 3.4 sodium sulfite solution (30g/L), with the time is now formulated. 3.5 sulfate (1 + 1). 3.6 potassium permanganate solution (1g/L). 3.7 benzoyl benzene hydroxylamine (BPHA) chloroform solution (2.5g/L). This solution is stored in glass bottles, it can be stable for several months in the shadows. Add 1% to 2% ethanol in chloroform as stable Given agent. 3.8 chloroform (when using this solution formulation). Chloroform and mixed with an equal volume of water, and extracted three times. Dried over anhydrous sodium sulfate. 3.9 hydrochloride (ρ201.19g/mL). Note. the concentration of complex V-BPHA absorbance and hydrochloric acid, and therefore, the sample solution and calibration solution to be used with a bottle of hydrochloric acid. 3.10 vanadium standard stock solution. This solution 1mL containing 1mg vanadium pentoxide. The 1.2864g ammonium metavanadate (NH4VO3) dissolved in about 900mL of water and transferred to 1L volumetric flask, dilute to the mark, Mix well. 3.11 vanadium standard solution. This solution 1mL containing 80μg vanadium pentoxide. Pipette 20.00mL vanadium standard solution (3.10) in 250mL volumetric flask, dilute with water to volume, and mix. This solution containing 1mL 80μg vanadium pentoxide. 3.12 matrix solution. Weigh 41 g of sodium hydroxide dissolved in about 350mL of water was carefully added after cooling 72mL sulfuric acid solution (3.5) Cold After cooling, dilute with water to 500mL, and mix. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 575.12-2007_English be delivered?

Answer: Upon your order, we will start to translate YS/T 575.12-2007_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 575.12-2007_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 575.12-2007_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 575.12-2007?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YS/T 575.12-2007 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.