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GB/T 2468-2008 English PDF

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GB/T 2468-2008: Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods
Status: Valid

GB/T 2468: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 2468-2008English169 Add to Cart 3 days [Need to translate] Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods Valid GB/T 2468-2008
GB/T 2468.1-1996English199 Add to Cart 2 days [Need to translate] Pyrites and concentrate--Determination of zinc content--Part 1: Flame atomic absorption spectrometric method Obsolete GB/T 2468.1-1996
GB 2468-1981English199 Add to Cart 2 days [Need to translate] Troilite and sulphur concentrates--Determination of zinc content Obsolete GB 2468-1981

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Basic data

Standard ID GB/T 2468-2008 (GB/T2468-2008)
Description (Translated English) Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D51
Classification of International Standard 73.060.01
Word Count Estimation 7,774
Date of Issue 2008-05-14
Date of Implementation 2008-10-01
Older Standard (superseded by this standard) GB/T 2468.1-1996; GB/T 2468.3-1996
Quoted Standard GB/T 6003.1; GB/T 6682; GB/T 9721; GB/T 9723
Regulation (derived from) National Standard Approval Announcement 2008 No.8 (Total No.121)
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 a flame atomic Pyrites and concentrate spectrophotometric determination of zinc content and spectral absorption spectrometry. This standard applies to flame atomic absorption spectrometry from 0. 01% to 1% measured in pyrite and sulfur content of zinc concentrate product. Spectrophotometry applied to Pyrites and determination of zinc concentrate product from 0. 01% to 0. 35.

GB/T 2468-2008: Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods


---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.
Pyrites and concentrate. Determination of zinc content. Flame atomic absorption spectrometric and spectrphotometric methods ICS 73.060.01 D51 National Standards of People's Republic of China Replacing GB/T 2468.1-1996, GB/T 2468.3-1996 Pyrites and concentrate - Determination of zinc content Flame atomic absorption spectrometry and spectrophotometry Posted 2008-05-14 2008-10-01 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 2468.1-1996 "Pyrites and concentrate - Determination of zinc content - Part 1. Flame atomic absorption spectrometry Law "and GB/T 2468.3-1996" Pyrites and concentrate - Determination of zinc content - Part 3. PAN spectrophotometric method ", these two Standard merged into a standard, divided into two methods. The standard proposed by China Petroleum and Chemical Industry Association. This standard is under the jurisdiction of Chemical Industry Standardization Technical Committee chemical mine. This standard was drafted. even in the blue sea and Design Institute. The main drafters of this standard. the king of peace, Zhang Xiaomei. This standard replaces the standards previously issued as follows. --- GB/T 2468.1-1996; --- GB/T 2468.3-1996. Pyrites and concentrate - Determination of zinc content Flame atomic absorption spectrometry and spectrophotometry

1 Scope

This standard specifies the flame atomic spectrophotometry Pyrites and concentrate zinc content absorption spectrometry and spectrophotometry. This standard is applicable to flame atomic absorption spectrometry from 0.01% to 1% in Pyrites and concentrate - Determination of zinc content products, spectrophotometric Law applies to the product concentrate zinc content of 0.01% to 0.3% Pyrites and.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 6003.1 woven wire mesh test sieve (GB/T 6003.1-1997, eqv ISO 3310-1.1990) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987) GB/T 9721 Chemicals General molecular absorption spectrophotometry (UV and visible part) GB/T 9723 Chemicals flame atomic absorption spectrometry General

3 Sample

The sample passes through 150μm test sieve (GB/T 6003.1), at 100 ℃ ~ 105 ℃ drying to constant weight, placed in a desiccator, cooled to Room temperature.

4 General Provisions

The water of this standard shall comply with GB/T 6682 water in three specifications; reagents listed Unless otherwise specified, refer to analytical reagent.

5 Analysis

5.1 Flame Atomic Absorption Spectrometry 5.1.1 Method summary Samples with hydrochloric acid - nitric acid is dissolved in dilute hydrochloric acid medium, using air - acetylene flame atomic absorption spectrometer at a wavelength of 213.9nm The absorbance was measured to obtain the working curve method zinc content. 5.1.2 Reagents and solutions 5.1.2.1 hydrochloric acid. 5.1.2.2 hydrochloric acid solution. 1 + 1. 5.1.2.3 nitrate. 5.1.2.4 Zinc standard solution. 1.00mg/mL. Weigh 1.0000g high purity metal zinc (or burning 1h at 1000 ℃ oxidation base Zinc 1.2447g) in 250mL beaker, was added 40mL of hydrochloric acid solution, covered with a watch glass and heated to dissolve completely, cooled and transferred to 1000mL volumetric flask, dilute to the mark, shake. This solution zinc (Zn) the amount of 1.00mg/mL. 5.1.2.5 Zinc standard solution. 100μg/mL. Absorb 50.0mL zinc standard solution (5.1.2.4) in 500mL volumetric flask, dilute with water Release to the mark. This solution zinc (Zn) the amount of 100μg/mL.

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