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GB/T 3253.9-2009 English PDF

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US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 3253.9-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of cadmium content -- Flame atomic absorption spectrometric method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3253.9-2009	139	Add to Cart	3 days	Methods for chemical analysis of antimony and antimony trioxide -- Determination of cadmium content -- Flame atomic absorption spectrometric method	Valid

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GB/T 2449.1 GB/T 5138 GB/T 7816 GB/T 3253.4 GB/T 3253.7 GB/T 3253.11

Basic data

Standard ID: GB/T 3253.9-2009 (GB/T3253.9-2009)
Description (Translated English): Methods for chemical analysis of antimony and antimony trioxide -- Determination of cadmium content -- Flame atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G13
Classification of International Standard: 77.120.99
Word Count Estimation: 6,676
Date of Issue: 2009-04-08
Date of Implementation: 2010-02-01
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 and cadmium content. This section applies to the determination of cadmium, antimony and antimony trioxide in the amount. Measurement range: 0. 0001% to 0. 0100%.

GB/T 3253.9-2009: Methods for chemical analysis of antimony and antimony trioxide -- Determination of cadmium content -- Flame atomic absorption spectrometric 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 cadmium content.Flame atomic absorption spectrometric method ICS 77.120.99 G13 National Standards of People's Republic of China Methods for chemical analysis of antimony and antimony trioxide Determination of cadmium content Flame Atomic Absorption Spectrometry 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; --- 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. Part is divided into 9 parts. 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. This section participated in the drafting unit. China Tin Group Co., Ltd., Hunan Chenzhou Mining Co., Ltd. The main drafters of this section. Cuide Hai, Song should the ball, Wu Donghua, Zong Yi, Cheng Hui, Wu Shaobo, Lu Zhen overflow. Methods for chemical analysis of antimony and antimony trioxide Determination of cadmium content Flame Atomic Absorption Spectrometry

1 Scope

GB/T 3253 provisions of this part of the determination of antimony and antimony trioxide in the amount of cadmium. This section applies to the determination of antimony and cadmium antimony trioxide in. Measurement range. 0.0001% to 0.0100%.

2 Method summary

Sample was dissolved in aqua regia (antimony sample was dissolved in hydrobromic acid) with hydrochloric acid - volatile antimony hydrobromic acid, hydrochloric acid residue was dissolved in hydrochloric acid Absorption spectrometer measured at a wavelength of 228.8nm cadmium in atomic absorbance.

3 Reagents

Unless otherwise indicated, the reagents used in this section refer to water and analytical grade and third grade water. 3.1 hydrochloride (ρ1.19g/mL). Nitrate 3.2 (ρ1.42g/mL). 3.3 hydrobromide (ρ1.48g/mL). 3.4 aqua regia. 3.5 nitric acid (1 + 1). 3.6 cadmium standard stock solution 3.6.1 cadmium stock solution. Weigh 0.1000g pure cadmium (mass fraction ≥99.99%) in 100mL beaker, add 20mL of nitric acid (3.5), heated to complete dissolution, boiled to remove oxides of nitrogen, cooled to room temperature and transferred to 1000mL volumetric flask, dilute to the mark, Mix well. This solution containing cadmium content of 100μg/mL. 3.6.2 Cadmium standard solution. Pipette 10mL cadmium stock solution (3.6.1) was added 5mL hydrochloric acid (3.1) in 100mL flask, diluted with water To the mark, and mix. This solution containing cadmium was 10μg/mL.

4 Instrument

Atomic absorption spectrometer, with a cadmium hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Sensitivity. substantially consistent with the measurement of the solution, the characteristic concentration of cadmium should not exceed 0.014μg/mL; --- Precision. measuring absorbance 10 times the highest concentration of the standard, and the standard deviation shall not exceed 1.00% of the average absorbance, With the lowest concentration (not zero concentration) standard solution absorbance measured 10 times, and the standard deviation should not exceed the maximum concentration of the standard 0.50% average absorbance; --- Linear curve. the curve was divided into five sections, the difference between the ratio of the absorbance of the absorbance difference between the highest and the lowest segment section shall not Less than 0.8. Atomic absorption spectrometer reference operating conditions. --- Wavelength 228.8nm; --- Lamp current 2.0mA; --- Lean combustion flame. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 3253.9-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 3253.9-2009_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 3253.9-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 3253.9-2009_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.