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GB/T 22931-2008 English PDF

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GB/T 22931-2008: Leather and fur -- Chemical tests -- Determination of plasticizers
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Basic data

Standard ID GB/T 22931-2008 (GB/T22931-2008)
Description (Translated English) Leather and fur -- Chemical tests -- Determination of plasticizers
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard Y46
Classification of International Standard 59.140.30
Word Count Estimation 10,178
Date of Issue 2008-12-30
Date of Implementation 2009-09-01
Quoted Standard GB/T 6682; QB/T 1267; QB/T 1272; QB/T 1273; QB/T 2706; QB/T 2716; QB/T 2717
Regulation (derived from) National Standard Approval Announcement 2008 No.26 (Total No.139)
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 leather, fur six plasticizers (see Appendix A) Determination of the content. This standard applies to all types of leather, fur and articles thereof.

GB/T 22931-2008: Leather and fur -- Chemical tests -- Determination of plasticizers

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Leather and fur. Chemical tests.Determination of plasticizers ICS 59.140.30 Y46 National Standards of People's Republic of China Leather and fur - Chemical tests Determination of plasticizer Posted 2008-12-30 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is a normative appendix, Appendix B, Appendix C and Appendix D is an informative annex. The standard proposed by China National Light Industry Council. This standard by the National Leather Industry Standardization Technical Committee (SAC/TC252) centralized. This standard was drafted. People's Republic of China Jiaxing Exit Inspection and Quarantine, China Leather and Footwear Industry Research Institute. Drafters of this standard. Shen Bing, Zhu Mei Yun, Zhao Liguo, should Xiaohong, Xiqi Hui. Leather and fur - Chemical tests Determination of plasticizer

1 Scope

This standard specifies the method for determination of leather, fur Six plasticizer (see Appendix A) content. This standard applies to all types of leather, fur and articles thereof.

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 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) QB/T 1267 fur finished specimen parts and sign Preparation and chemical QB/T 1272 chemical analysis of samples of finished fur General Analysis Determination of QB/T 1273 finished fur volatile matter content QB/T 2706 leather chemical, physical, mechanical and color fastness test sampling site (QB/T 2706-2005, ISO 2418. 2002, MOD) QB/T 2716 Leather - Chemical tests of the sample preparation (QB/T 2716-2005, ISO 4044. 1977, MOD) Determination of QB/T 2717 Leather - Chemical tests volatiles Principle 3 The sample was ultrasonic chloroform extract was purified by column chromatography on alumina, volume, gas chromatography - mass spectrometry (GC-MS) assay, external standard.

4 Reagents and materials

Unless otherwise indicated in the analysis using only recognized as analytical reagents and in line with GB/T 6682 or equivalent tertiary water purity Of water. 4.1 chloroform, distilled spare. 4.2 n-hexane, re-steamed spare. 4.3 acetone, distilled spare. 4.4 acetone eluent hexane, 10mL acetone (4.3) and 100mL of n-hexane (4.2) mixed preparation. 4.5 alumina, neutral alumina chromatography, 100 mesh to 200 mesh, 105 ℃ drying 2h, cooled to room temperature and placed in a desiccator, per 100g Added about 2.5mL water drop live, mix seal, placed after 12h use. Different manufacturers and different batches of alumina activity differences, should live down slightly adjusted depending on the purchase of alumina products, lowering living after Active alumina shall comply with the requirements of 7.1. 4.6 alumina column, about 1cm in diameter at the bottom of a glass column inserted into some of the cotton, dry-loaded aluminum oxide (4.5) about 2cm High, gently knock real backup. 4.7 standard, six kinds of phthalate plasticizers, purity greater than or equal to 98%. 4.8 standard stock solution were accurately weighed amount of each phthalate plasticizers standard (4.7), were formulated with n-hexane

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