GB/T 2468-2008 English PDFUS$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 2468-2008: Pyrites and concentrate -- Determination of zinc content -- Flame atomic absorption spectrometric and spectrophotometric methods Status: Valid GB/T 2468: Historical versions
Basic dataStandard 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73.060.01 Word Count Estimation: 7,774 Date of Issue: 2008-05-14 Date of Implementation: 2008-10-01 Older Standard (superseded by this standard): GB/T 2468.1-1996; GB/T 2468.3-1996 Quoted Standard: GB/T 6003.1; GB/T 6682; GB/T 9721; GB/T 9723 Regulation (derived from): National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 ForewordThis 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 spectrophotometry1 ScopeThis 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 referencesThe 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 General3 SampleThe 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 ProvisionsThe water of this standard shall comply with GB/T 6682 water in three specifications; reagents listed Unless otherwise specified, refer to analytical reagent.5 Analysis5.1 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. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 2468-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 2468-2008_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 2468-2008_English with my colleagues?Answer: Yes. 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Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 2468-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
