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YS/T 715.5-2009 English PDF

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US$139.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email.
YS/T 715.5-2009: Methods for chemical analysis of selenium dioxide. Part 5: Determination of water insoluble content. Gravimetric analysis
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 715.5-2009	139	Add to Cart	2 days	Methods for chemical analysis of selenium dioxide. Part 5: Determination of water insoluble content. Gravimetric analysis	Valid

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GB/T 7999 YS/T 600 GB/T 14849.2 YS/T 715.2 YS/T 715.3 YS/T 715.1

Basic data

Standard ID: YS/T 715.5-2009 (YS/T715.5-2009)
Description (Translated English): Methods for chemical analysis of selenium dioxide. Part 5: Determination of water insoluble content. Gravimetric analysis
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H12
Classification of International Standard: 77.120.10
Word Count Estimation: 4,455
Date of Issue: 2009-12-04
Date of Implementation: 2010-06-01
Regulation (derived from): MIIT [2009] No. 66
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies: selenium dioxide in water insoluble content determination. This standard applies to selenium dioxide in water insoluble content determination. The determination of water insoluble matter with the standard, according to sample size and specifications of the value obtained Water insoluble mass not less than 1 mg, their measuring range: 0. 002% to 0. 06%.

YS/T 715.5-2009: Methods for chemical analysis of selenium dioxide. Part 5: Determination of water insoluble content. Gravimetric analysis

---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 selenium dioxide.Part 5. Determination of water insoluble content.Gravimetric analysis ICS 77.120.10 H12 People's Republic of China Nonferrous Metals Industry Standard Methods for chemical analysis of selenium dioxide Part 5. Water-insoluble content - Gravimetric method Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 715 "selenium dioxide chemical analysis method" is divided into five parts. --- Part 1. Determination of the amount of selenium dioxide, sodium thiosulfate titration; --- Part 2. arsenic, cadmium, iron, mercury, lead content - Inductively coupled plasma atomic emission spectrometry; --- Part 3. Determination of chlorine content of silver chloride turbidimetric method; --- Part 4. residue on ignition - Gravimetric method; --- Part 5. water-insoluble content - Gravimetric method. This section YS/T Part 5 715. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting unit. Tongling Nonferrous Metals Group Holdings Limited. This section is drafted. JCC is responsible. Participated in the drafting of this section. Tongling Nonferrous Metals Group Holdings Co., Ltd., Guangzhou Nonferrous Metal Research Institute. The main drafters of this section. Lu Lin, Sammy Ng, Xu Weidong, Luo Yongmei, Wang Jinping, Zhang Jin, Huang Pu Ying. Methods for chemical analysis of selenium dioxide Part 5. Water-insoluble content - Gravimetric method

1 Scope

YS/T of the provisions of section 715 of the method for the determination of selenium dioxide in water-insoluble content. This section applies to the determination of selenium dioxide in water-insoluble content. Determination of water insoluble matter when the present standard, according to the sample size and specifications of the value of the counter Operators insolubles resulting aqueous mass is not less than 1mg, its measurement range. 0.002% to 0.06%.

2 Method summary

After the sample is dissolved in water, filtered, washed with, dried and weighed.

3 Reagents and Instruments

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 sand core glass crucible. a volume of 30mL, pore size of 5μm ~ 15μm. 3.2 vacuum suction filtration apparatus. 3.3 dryer. 3.4 electric oven. control the temperature at 105 ℃ ~ 110 ℃. 3.5 Analysis of balance. a sense of the amount of 0.1mg.

4 Sample

Sample required uniform, dry and seal intact. Step 5 Analysis 5.1 Sample In dry conditions, quickly weighed about 50g sample, accurate to 0.001g. 5.2 Determination Independent secondary measurement averaged. 5.2.1 The sample (5.1) in 250mL beaker, 100mL of distilled water was added, dissolved by heating, cooled to room temperature. 5.2.2 has been used in 105 ℃ ~ 110 ℃ constant weight of the sand core glass crucible was filtered, and the filtrate was washed with distilled water to pH 6 so far. 5.2.3 The sand core glass crucible placed in an electric oven at a temperature of 105 ℃ ~ 110 ℃ dried to constant weight. Calculation results of the analysis of 6 Water-insoluble content of the quality of water insoluble fraction of water-insoluble substance and its value is expressed in%, according to formula (1). 100 (1) Where. The obtained results are shown to fourth place after the decimal point. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of YS/T 715.5-2009_English be delivered?

Answer: Upon your order, we will start to translate YS/T 715.5-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 2 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of YS/T 715.5-2009_English with my colleagues?

Answer: Yes. The purchased PDF of YS/T 715.5-2009_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.