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GB/T 17863-2008 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 17863-2008 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$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 17863-2008: Determination of thorium in thorium ores
Status: Valid

GB/T 17863: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 17863-2008	209	Add to Cart	3 days	Determination of thorium in thorium ores	Valid
GB/T 17863-1999	319	Add to Cart	3 days	Determination of thorium in thorium ores N263 separation EDTA titration method	Obsolete

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Basic data

Standard ID: GB/T 17863-2008 (GB/T17863-2008)
Description (Translated English): Determination of thorium in thorium ores
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F46
Classification of International Standard: 27.120.30
Word Count Estimation: 9,945
Date of Issue: 2008-07-02
Date of Implementation: 2009-04-01
Older Standard (superseded by this standard): GB/T 17863-1999
Regulation (derived from): Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the thorium thorium ores N263 and N263 by EDTA titration separation arsenazo �� spectrophotometry principles, procedures, reagents and instruments, results calculation and precision of the method. N263 by EDTA titration method is suitable for granite, volcanic rock type alkaline thorium thorium ore content, but also for thorium oxide compounds such as thorium thorium content. Measurement range 0. 1 % to 10%.

GB/T 17863-2008: Determination of thorium in thorium ores

---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.
Determination of thorium in thorium ores ICS 27.120.30 F46 National Standards of People's Republic of China Replacing GB/T 17863-1999 Determination of thorium thorium ores Posted 2008-07-02 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 17863-1999 "Determination of thorium thorium ores N263 separation EDTA titration." This standard compared with GB/T 17863-1999 main changes are as follows. --- In the case of N263 separation EDTA titration main technical content unchanged, the measurement range N263 separation EDTA titration Like ~% from 0.02% (1 < state < 10) to 0.1% to 10%, and the written expression and the result of the calculation has been modified. --- Thorium content of 0.02% to 0.2% of the samples, an increase of N263 Extraction Chromatography arsenazo Ⅲ spectrophotometry. The standard proposed by China National Nuclear Corporation. This standard by the National Standardization Technical Committee of nuclear energy. This standard was drafted. Nuclear Industry Beijing Institute of Geology. The main drafters of this standard. Pei Lingyun. This standard replaces the previous editions of the standard. --- GB/T 17863-1999. Determination of thorium thorium ores

1 Scope

This standard specifies the thorium thorium ores N263 separation EDTA titration spectrophotometric measurement principle and N263 separation arsenazo Ⅲ, Steps, reagents and instruments, the results of calculation and precision of the method. N263 separation EDTA titration method is suitable for granite, volcanic rocks determined by basic types of thorium thorium content of the ore, but also to oxidation Determination of thorium content of thorium compounds thorium. Measurement range 0.1% to 10%. Less than or equal to 20mg strontium (Ⅱ), 20mg zirconium (Ⅳ), 100mg lanthanum (Ⅲ), 100mg cerium (Ⅳ), 25mg ytterbium (Ⅲ), 20mg Yttrium (Ⅲ), 40mg of uranium (Ⅵ), 20mg zinc (Ⅱ), 100mg magnesium (Ⅱ), 200mg calcium (Ⅱ), 200mg of iron (Ⅲ), 52mg titanium (Ⅲ), 55mg barium (Ⅱ), 100mg of aluminum (Ⅲ) does not interfere with the determination. N263 separation Arsenazo Ⅲ spectrophotometric method for the determination of granite, volcanic rocks, alkaline rocks type thorium thorium content of the ore. Determination Fan Around 0.02% to 0.2%. Less than or equal to 200mg of uranium (Ⅵ), iron (Ⅲ), 100mg of titanium (Ⅲ), zirconium (Ⅳ), calcium (Ⅱ), magnesium (Ⅱ), Aluminum (Ⅲ), Zn (Ⅱ), Cu (Ⅱ), 50mg of lanthanum (Ⅲ), cerium (Ⅳ), ytterbium (Ⅲ), yttrium (Ⅲ), 20mg of vanadium (Ⅴ) does not interfere with the determination. 2 N263 separation EDTA titration 2.1 Method summary Sample temperature molten sodium peroxide decomposition, adding an appropriate amount of ferric chloride extraction carrier (in case of phosphates impurities or more samples instead three Ethanolamine and EDTA coarse separation), the test solution through the N263 extraction column separation, the vast majority of the element thorium measure the interference is removed. in Acidic solution pH1.65 ~ 1.70 in, EDTA and thorium complex is 1 + 1. Display with titration end point jump clear of XO - half XO - Naphthol Green B ternary complex indicator to EDTA standard solution titration solution turns bright yellow-green or bright pink to the purple end. 2.2 Reagents Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water. 2.2.1 sodium peroxide. 2.2.2 ferric chloride solution, 150g/L. 2.2.3 triethanolamine solution, 1 + 1. 2.2.4 EDTA solution, 50g/L. 2.2.5 hydrochloric acid solution, 1 + 1. 2.2.6 sodium hydroxide solution, 10g/L. 2.2.7 nitric acid - tartaric acid solution 2g of tartaric acid was dissolved in water, was added 30mL of nitric acid (ρ = 1.42g/cm 3), dilute with water to 100mL. 2.2.8 nitric acid solution Added 15mL of nitric acid (ρ = 1.42g/cm in 100mL flask 3), dilute with water to 100mL. 2.2.9 nitric acid - tartaric acid solution 2g of tartaric acid was dissolved in water, was added 15mL of nitric acid (ρ = 1.42g/cm 3), dilute with water to 100mL. 2.2.10 hydrochloric acid solution, 1 + 3. 2.2.11 N263 (methyl chloride trialkylamine). 200 2.2.12 gasoline. 2.2.13 The second octanol. 2.2.14 ethanol. 2.2.15 fiberglass, washed with hydrochloric acid (2.2.10) boiling 0.5h, water wash stand. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 17863-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 17863-2008_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 GB/T 17863-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 17863-2008_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 GB/T 17863-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 17863-2008 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.