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GB/T 3253.8-2009 English PDF

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US$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3253.8-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of antimony trioxide content -- Iodine titration method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3253.8-2009	169	Add to Cart	3 days	Methods for chemical analysis of antimony and antimony trioxide -- Determination of antimony trioxide content -- Iodine titration method	Valid

Similar standards

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Basic data

Standard ID: GB/T 3253.8-2009 (GB/T3253.8-2009)
Description (Translated English): Methods for chemical analysis of antimony and antimony trioxide -- Determination of antimony trioxide content -- Iodine titration method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G13
Classification of International Standard: 77.120.99
Word Count Estimation: 7,794
Date of Issue: 2009-04-08
Date of Implementation: 2010-02-01
Older Standard (superseded by this standard): GB/T 3254.1-1998
Regulation (derived from): National Standard Approval Announcement 2009 No.4 (Total No.144)
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 method for the determination of antimony trioxide content. This section applies to the determination of antimony trioxide content. Measuring range: 99. 00% to 99. 95 %.

GB/T 3253.8-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of antimony trioxide content -- Iodine titration 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 antimony and antimony trioxide. Determination of antimony trioxide content. Iodine titration method ICS 77.120.99 G13 National Standards of People's Republic of China Replacing GB/T 3254.1-1998 Methods for chemical analysis of antimony and antimony trioxide Determination of the amount of antimony trioxide Iodometry Posted 2009-04-08 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 3253 "Methods for chemical analysis of antimony and antimony trioxide," a total of 11 parts. --- GB/T 3253.1-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of arsenic content of arsenic molybdenum blue spectrophotometric method; --- Determination of GB/T 3253.2-2008 Methods for chemical analysis of antimony and antimony trioxide amount of iron phenanthroline spectrophotometry Law degree; --- Flame atomic GB/T 3253.3-2008 Methods for chemical analysis of antimony and antimony trioxide amount of lead absorption spectrometry; --- GB /determination of sulfur content of antimony and antimony trioxide chemical analysis of combustion and T 3253.4-2009 law; --- GB/T 3253.5-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of copper content - Flame atomic absorption spectrometry; --- GB/T 3253.6-2008 and antimony trioxide of selenium content - Atomic fluorescence spectrometry; --- GB/T 3253.7-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content - Atomic fluorescence spectrometry; --- GB/T 3253.8-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of iodometry; --- Flame atomic GB/T 3253.9-2009 Methods for chemical analysis of antimony and antimony trioxide amount of cadmium absorption spectrometry; --- GB/T 3253.10-2009 Methods for chemical analysis of antimony and antimony trioxide - Determination of the amount of mercury atomic fluorescence spectrometry; --- Atomic GB/T 3253.11-2009 Methods for chemical analysis of antimony and antimony trioxide bismuth content absorption spectrometry. This section section 8. This Part replaces GB/T 3254.1-1998 "chemical analysis of antimony trioxide amount of determination." versus GB/T 3254.1-1998 compared to this part of the following changes. --- Text format has been modified; --- Complements the precision and quality assurance and control provisions. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. This section is responsible for drafting unit. tin mine flash-antimony industry limited liability company. Participated in the drafting of this section. Hunan Nonferrous Metal Research Institute, China Antimony Chemical Co., Ltd. The main drafters of this section. Zong Yi, Song should ball, Liwen Mei, Cuide Hai, Pangwen Lin, Ma Liujun. This part of the standard replaces the previous editions are. --- GB/T 3254.1-1982, GB/T 3254.1-1998. Methods for chemical analysis of antimony and antimony trioxide Determination of the amount of antimony trioxide Iodometry

1 Scope

GB/T 3253 provisions of this part of the determination of the amount of antimony trioxide in. This section applies to the determination of the amount of antimony trioxide, antimony trioxide. Measurement range. 99.00% to 99.95%.

2 Normative references

The following documents contain provisions which, through GB/T reference in this 3253 constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 3253.1-2008 Methods for chemical analysis of antimony and antimony trioxide - Determination of arsenic content of arsenic molybdenum blue spectrophotometric method

3 Method summary

Sample with tartaric acid dissolved in sodium bicarbonate buffer solution, using starch as indicator, titrate with iodine standard solution to a purple-blue as the end point, Weigh accurately to consume quality standard iodine solution, to calculate the mass fraction of antimony trioxide. Arsenic trioxide quantitative interfere with the determination to deal with the correction results after its independent determinations.

4 Reagents

Unless otherwise indicated, the reagents used in this section refer to water and analytical grade and third grade water. 4.1 sodium bicarbonate. 4.2 tartaric acid solution (200g/L). 4.3 Sodium hydroxide solution (230g/L). 4.4 Iodine Standard Solution 4.4.1 preparation Weigh 10.45g into 1000mL beaker iodide, potassium iodide was added 100g, 200mL of water was added to dissolve and transferred to 1000mL brown Volumetric flask, dilute with water to volume, and mix. 4.4.2 Calibration Along with the calibration blank test. By 7.1 Weigh 0.40000g ± 0.00020g antimony trioxide (mass fraction 99.99%), placed in 500mL conical flask, Moistened with a little water, add 50mL tartaric acid solution (4.2), the following conduct by 7.4.2. According to equation (1) calculate the standard iodine titration solution real Inter concentration. Ba m1 = 0.07288 × (1- m1 m1 m1 2- 3) (1) Where. Ba --- the actual concentration of iodine standard titration solution, expressed in moles per kilogram (mol/kg); M1 --- antimony trioxide mass in grams (g); M1 --- before calibration, filled with quality standard iodine titration solution (4.4) Titration bottles weighing in grams (g); M1 2 --- After calibration, quality containing residual iodine titration standard solution (4.4) Titration bottles weighing in grams (g); ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3253.8-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3253.8-2009_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 3253.8-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3253.8-2009_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.