GB/T 3253.3-2008 English PDF

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GB/T 3253.3-2008: Methods for chemical analysis of antimony and antimony trioxide -- Determination of lead content -- Flame atomic absorption spectrometric method
Status: Valid

GB/T 3253.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3253.3-2008	139	Add to Cart	3 days	Methods for chemical analysis of antimony and antimony trioxide -- Determination of lead content -- Flame atomic absorption spectrometric method	Valid
GB/T 3253.3-2001	399	Add to Cart	3 days	Methods for chemical analysis of antimony -- Determination of lead and copper contents	Obsolete
GB/T 3253.3-1982	RFQ	ASK	3 days	Chemical analysis of antimony--The dithizone photometric method for determination of lead	Obsolete

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Basic data

Standard ID: GB/T 3253.3-2008 (GB/T3253.3-2008)
Description (Translated English): Methods for chemical analysis of antimony and antimony trioxide -- Determination of lead content -- Flame atomic absorption spectrometric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.99
Word Count Estimation: 6,664
Date of Issue: 2008-03-31
Date of Implementation: 2008-09-01
Older Standard (superseded by this standard): GB/T 3253.3-2001; GB/T 3254.3-1998
Regulation (derived from): National Standard Approval Announcement 2008 No.5 (Total No.118)
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 and antimony trioxide in the amount of lead. This section applies to the determination of lead, antimony and antimony trioxide in. Measurement range: 0. 0020% to 0. 75%.

GB/T 3253.3-2008: Methods for chemical analysis of antimony and antimony trioxide -- Determination of lead 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 lead content. Flame atomic absorption spectrometric method ICS 77.120.99 H13 National Standards of People's Republic of China Replacing GB/T 3253.3-2001, GB/T 3254.3-1998 Methods for chemical analysis of antimony and antimony trioxide Determination of lead content by flame atomic absorption spectrometry Posted 2008-03-31 2008-09-01 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 chemical analysis of antimony trioxide and arsenic content of molybdenum blue spectrophotometric determination of arsenic --- GB /antimony trioxide and chemical analysis of iron content measured T 3253.2 phenanthroline spectrophotometry --- GB/T 3253.3 antimony trioxide and chemical analysis of lead content - Flame Atomic Absorption Spectrometry --- Determination of GB/T 3253.4 antimony trioxide and sulfur content of chemical analysis methods --- GB/T 3253.5 antimony trioxide and chemical analysis of copper content - Flame Atomic Absorption Spectrometry --- GB/T 3253.6 and antimony trioxide of selenium content - Atomic Fluorescence Spectrometry --- GB T 3253.7 antimony trioxide and chemical analysis methods Determination of bismuth content / --- Determination of GB/T 3253.8 antimony trioxide and antimony trioxide amount of chemical analysis methods --- Determination of GB/T 3253.9 antimony trioxide and chemical analysis of cadmium content --- Determination of GB/T 3253.10 antimony trioxide and chemical analysis of mercury content Determination --- GB/T 3253.11 antimony trioxide and analysis of lead, copper, bismuth, cadmium, iron, selenium, chromium, arsenic, mercury, tin content This is Part 3. This Part replaces GB/T 3253.3-2001 "Methods for chemical analysis of lead, antimony, copper content determination" (lead part), GB/T 3254.3- 1998 "Methods for chemical analysis of antimony trioxide determination of lead content." Compared with GB/T 3253.3-2001, GB/T 3254.3-1998, This section has the following changes. --- Canceled dithizone spectrophotometry, atomic absorption spectrometry retention; --- Detection limit extends from 0.010% to 0.0020%; --- 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 part of tin mining Twinkling Star Antimony Industry Co., Ltd., China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. This section was drafted by the tin mining flash-antimony industry limited liability company. This part by the Hunan Nonferrous Metal Research Institute, Hunan Chenzhou Mining Co., Ltd. participated in the drafting. The main drafters of this section. Zong Yi, Song should ball, Cuide Hai. This part certifier. Pangwen Lin, Wu Shaobo, Yang Deli, Ye Fangfang, Chen song. This part of the standard replaces the previous editions are. --- GB/T 3253.3-1982, GB/T 3253.5-1982, GB/T 3253.3-2001; --- GB/T 3254.4-1982, GB/T 3254.3-1998. Methods for chemical analysis of antimony and antimony trioxide Determination of lead content by flame atomic absorption spectrometry

1 Scope

This section provides the determination of antimony and antimony trioxide in lead content. This section applies to the determination of lead content of antimony and antimony trioxide in. Measurement range. 0.0020% to 0.75%.

2 Method summary

Sample with nitric acid or hydrochloric acid and hydrobromic acid dissolved and evaporated to dryness, repeat adding hydrobromide volatile except antimony. In dilute hydrochloric acid medium, using air - B Alkyne flame atomic absorption spectrometer wavelength 283.3nm measured absorbance of lead, antimony trioxide and other impurities do not interfere Determination.

3 Reagents

3.1 commercially available reagents 3.1.1 hydrochloric acid (ρ1.19g/mL). 3.1.2 nitrate (ρ1.42g/mL). 3.1.3 hydrobromic acid (ρ1.50g/mL). 3.2 solution 3.2.1 hydrochloric acid (1 + 1). 3.2.2 nitric acid (1 + 1). 3.3 standard solution 3.3.1 Lead standard stock solution Weigh 1.0000g lead (≥99.99%) in 200mL beaker, add 20mL of nitric acid (3.2.2), micro heat to dissolve completely get rid of boiling Oxides of nitrogen, cooled to room temperature. Moved into 1000mL volumetric flask, dilute with water to volume, and mix. 1mL solution containing 1mg lead. 3.3.2 Lead standard solution Pipette 10.00mL lead standard stock solution (3.3.1) in 100mL flask, add 5mL hydrochloric acid (3.2.1), diluted with water to Volume, and mix. This solution 1mL containing 100μg lead.

4 Instrument

Atomic absorption spectrometer, with a lead hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Characteristic concentration. a solution in the measurement matrix consistent solution, characterized in lead concentration should not exceed 0.20μg/mL. --- Precision. standard solution with the highest concentration of 10 times the absorbance measurements, the standard deviation should not exceed the average absorbance of 1.0%; With the lowest concentration of standard solution (not "zero" concentration of the standard) measuring the absorbance of 10 times, the standard deviation should not exceed the maximum 0.5% concentration of the standard average absorbance. --- Linear curve. The curve is divided into five sections according to concentration, absorbance difference between the absorbance difference between the highest and the lowest segment of the segment Ratio of not less than 0.8. Atomic absorption spectrometer reference operating conditions. --- Wavelength 283.3nm; ......

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