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SN/T 2308-2009 English PDF

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SN/T 2308-2009: Determination of copper, chromium, arsenic in preservative solutions and treated wood and wood-based products. Atomic absorption spectrometric method
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SN/T 2308-2009English209 Add to Cart 3 days [Need to translate] Determination of copper, chromium, arsenic in preservative solutions and treated wood and wood-based products. Atomic absorption spectrometric method Valid SN/T 2308-2009

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Basic data

Standard ID SN/T 2308-2009 (SN/T2308-2009)
Description (Translated English) Determination of copper, chromium, arsenic in preservative solutions and treated wood and wood-based products. Atomic absorption spectrometric method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard B71
Classification of International Standard 79.010
Word Count Estimation 8,897
Date of Issue 2009-07-07
Date of Implementation 2010-01-16
Quoted Standard GB/T 602; GB/T 6682
Adopted Standard BS 5666-3-1991, MOD
Regulation (derived from) Industry standard filing Notice 2009 No. 10 (No. 118 overall)
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the wood preservatives and preservative treated wood and its products in copper, chromium and arsenic atomic absorption spectrometric method. This standard applies to wood preservatives and preservative treated wood and its products in copper, chromium and arsenic by atomic absorption spectrometry.

SN/T 2308-2009: Determination of copper, chromium, arsenic in preservative solutions and treated wood and wood-based products. Atomic absorption spectrometric method


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Determination of copper, chromium, arsenic in preservative solutions and treated wood and wood-based products.Atomic absorption spectrometric method Exit inspection and quarantine industry standard book People's Republic of China After the wood preservative and preservative treated wood and its products Determination of atoms of copper, chromium and arsenic absorption spectrometry Posted 2009-07-07 2010-01-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This revised standard adopts BS5666-3.1991 "Testing methods of wood preservatives and preservative-treated timber - Part 3. copper, After chromium, arsenic preservative solution and anticorrosive ingredient timber handling quantitative analysis "(in English). This standard is based on BS5666-3.1991 redrafted. This standard adopts BS5666-3.1991 has been modified when the main technical differences are as follows. a) For the BS5666-3.1991 standard preface made editorial changes; b) increase the normative references; c) increasing the timber and its method of preparation and determination of moisture content of the sample after the article embalmed; d) increasing the lower limit of detection of the elements of this standard; e) Remove the colorimetry; f) increasing the working conditions of the instrument Appendix A; g) The list of standard terms and control the list of British Standards in terms of informative Appendix B. The Standard Appendix A and Appendix B are informative. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Guangdong CIQ is responsible for drafting. The main drafters of this standard. Lurui Jiang, Guoren Hong, Zhang Zhihui, Liuchong Hua Fang Han, Ye Tianan, Liang Ying. This standard is the first release of the entry-exit inspection and quarantine industry standards. After the wood preservative and preservative treated wood and its products Determination of atoms of copper, chromium and arsenic absorption spectrometry

1 Scope

This standard specifies the atom timber and its products of copper, chromium and arsenic wood preservatives and preservative treatment after absorption spectrometric method. This standard applies to wood and its products atom of copper, chromium and arsenic wood preservatives and preservative treatment after absorption spectroscopy.

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. Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

After the sample timber wood preservatives and preservative-treated dilute sulfuric acid and hydrogen peroxide mixture treatment, quantitative leaching of copper, chromium and arsenic compounds And filtered and the filtrate was added a solution of sodium by atomic absorption spectrometry determination of copper, chromium and arsenic.

4 Reagents

Unless otherwise indicated, reagents were analytical grade and water of at least reached GB/T 6682 provisions grade 3 purity water or deionized water. 4.1 sulfuric acid (ρ = 1.84g/mL), pure class distinctions. 4.2 Hydrogen peroxide (30% aqueous solution). 4.3 sulfuric acid solution (2.5mol/L). preparation according to GB/T 602 requirements. 4.4 over anhydrous sodium sulfate. 4.5 sodium sulfate solution (30g/L). Weigh 30g of anhydrous sodium sulfate dissolved in water and diluted to 1000mL, shake. 4.6 sulfate (0.5mol/L) - sodium sulfate (3g/L) solution.200mL sulfuric acid solution (4.3) was added to 100mL solution of sodium (4.5), mix and dilute to 1000mL. 4.7 mixed standard solution (100μg/mLCu, 100μg/mLCr and 1000μg/mLAs). according to GB/T 602 regulations formulated or Direct use of standard materials permits formulated.

5 Instruments

5.1 atomic absorption spectrometer. 5.2 electronic balance, a sense of the amount of 0.1mg. 5.3 thermostatic shaking water bath. 5.4 planing wood or hollow drill. 5.5 air convection oven. 5.6 metal mesh, pore size 1.0mm.

6 Sample Preparation

6.1 Sample preparation Wood preservatives Wood preservatives Pipette samples directly.

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