欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    CEN TS 13130-20-2005 Materials and articles in contact with foodstuffs - Plastics substances subject to limitation - Part 20 Determination of epichlorohydrin in plastics《和食品接触的材料和物.pdf

    • 资源ID:592411       资源大小:334.88KB        全文页数:22页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    CEN TS 13130-20-2005 Materials and articles in contact with foodstuffs - Plastics substances subject to limitation - Part 20 Determination of epichlorohydrin in plastics《和食品接触的材料和物.pdf

    1、DRAFT FOR DEVELOPMENTDD CEN/TS 13130-20:2005Materials and articles in contact with foodstuffs Plastics substances subject to limitation Part 20: Determination of epichlorohydrin in plasticsICS 67.250g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g

    2、59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58DD CEN/TS 13130-20:2005This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 16 September 2005 BSI 16 September 2005ISBN 0 580 46073 8National f

    3、orewordThis Draft for Development is the official English language version of CEN/TS 13130-10:2005.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature because the method was not evaluated u

    4、sing recognized ring trial procedures. As a consequence there are no reproducibility data for the method. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained.Comments arising from the use of this Draft for Development are re

    5、quested so that UK experience can be reported to the European organization responsible for its conversion to a European standard. A review of this publication will be initiated 2 years after its publication by the European organization so that a decision can be taken on its status at the end of its

    6、3-year life. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into a European Stan

    7、dard, to extend the life of the Technical Specification or to withdraw it. Comments should be sent in writing to the Secretary of BSI Subcommittee CW/47/1 Migration from plastics, at British Standards House, 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and p

    8、roposing, where possible, an appropriate revision of the text.A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in

    9、 the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsibl

    10、e for its correct application.Summary of pagesThis document comprises a front cover, an inside front cover, the CEN/TS title page, pages 2 to 18, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued si

    11、nce publicationAmd. No. Date CommentsTECHNICAL SPECIFICATIONSPCIFICATION TECHNIQUETECHNISCHE SPEZIFIKATIONCEN/TS 13130-20February 2005ICS 67.250English versionMaterials and articles in contact with foodstuffs - Plasticssubstances subject to limitation - Part 20: Determination ofepichlorohydrin in pl

    12、asticsMatriaux et objets en contact avec les denresalimentaires - Substances dans les matires plastiquessoumises des limitations - Partie 20 : Dtermination delpichlorohydrine dans les matires plastiquesWerkstoffe und Gegenstnde in Kontakt mit Lebensmitteln- Substanzen in Kunststoffen, die Beschrnkun

    13、genunterliegen - Teil 20: Bestimmung von Epichlorhydrin inKunststoffenThis Technical Specification (CEN/TS) was approved by CEN on 16 December 2004 for provisional application.The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be reques

    14、ted to submit theircomments, particularly on the question whether the CEN/TS can be converted into a European Standard.CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS availablepromptly at national level in an appropriate form. It

    15、is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)until the final decision about the possible conversion of the CEN/TS into an EN is reached.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, F

    16、rance,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGMan

    17、agement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. CEN/TS 13130-20:2005: E2 Contents page Foreword. 3 Introduction 5 1 Scope 6 2 Normative references . 6 3 Principle . 6 4 Reagents 6

    18、 5 Apparatus 8 6 Samples . 9 7 Procedure 10 8 Precision 14 9 Confirmation 15 10 Test report . 16 Annex A (normative) Equipment for the micro-distillation of epichlorohydrin from dioxane extract 17 Bibliography . 18 DD CEN/TS 13130-20:20053 Foreword This document (CEN/TS 13130-20:2005) has been prepa

    19、red by Technical Committee CEN/TC 194 “Utensils in contact with food”, the secretariat of which is held by BSI. This part of EN 13130 has been prepared within the Standards, Measurement and Testing project, MAT1-CT92-0006, “Development of Methods of Analysis for Monomers” and has been prepared by Su

    20、bcommittee (SC 1) of TC 194 “Utensils in contact with food“ as one of a series of test methods for plastics materials and articles in contact with foodstuffs. This standard is intended to support Directives 2002/72/EC 1, 89/109/EEC 2, 82/711/EEC 3 and its amendments 93/8/EEC 4 and 97/48/EC 5, and 85

    21、/572/EEC 6. At the time of preparation and publication of this part of EN 13130 the European Union legislation relating to plastics materials and articles intended to come into contact with foodstuffs is incomplete. Further Directives and amendments to existing Directives are expected which could ch

    22、ange the legislative requirements which this standard supports. It is therefore strongly recommended that users of this standard refer to the latest relevant published Directive(s) before commencement of a test or tests described in this standard. This part of EN 13130 should be read in conjunction

    23、with EN 13130-1. Further parts of EN 13130, under the general title Materials and articles in contact with foodstuffs - Plastics substances subject to limitation, have been prepared, and others are in preparation, concerned with the determination of specific migration from plastics materials into fo

    24、odstuffs and food simulants and the determination of specific monomers and additives in plastics. The parts of EN 13130 are as follows. Part 1: Guide to test methods for the specific migration of substances from plastics to foods and food simulants and the determination of substances in plastics and

    25、 the selection of conditions of exposure to food simulants Part 2: Determination of terephthalic acid in food simulants Part 3: Determination of acrylonitrile in food and food simulants Part 4: Determination of 1,3-butadiene in plastics Part 5: Determination of vinylidene chloride in food simulants

    26、Part 6: Determination of vinylidene chloride in plastics Part 7: Determination of monoethylene glycol and diethylene glycol in food simulants Part 8: Determination of isocyanates in plastics Part 9: Determination of acetic acid, vinyl ester in food simulants Part 10: Determination of acrylamide in f

    27、ood simulants Part 11: Determination of 11-aminoundecanoic acid in food simulants Part 12: Determination of 1,3-benzenedimethanamine in food simulants DD CEN/TS 13130-20:20054 Part 13: Determination of 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A) in food simulants Part 14: Determination of 3,3-bis(

    28、3-methyl-4-hydroxyphenyl)-2-indoline in food simulants Part 15: Determination of 1,3-butadiene in food simulants Part 16: Determination of caprolactam and caprolactam salt in food simulants Part 17: Determination of carbonyl chloride in plastics Part 18: Determination of 1,2-dihydroxybenzene, 1,3-di

    29、hydroxybenzene, 1,4-dihydroxybenzene, 4,4-dihydroxybenzophenone and 4,4dihydroxybiphenyl in food simulants Part 19: Determination of dimethylaminoethanol in food simulants Part 20: Determination of epichlorohydrin in plastics Part 21: Determination of ethylenediamine and hexamethylenediamine in food

    30、 simulants Part 22: Determination of ethylene oxide and propylene oxide in plastics Part 23: Determination of formaldehyde and hexamethylenetetramine in food simulants Part 24: Determination of maleic acid and maleic anhydride in food simulants Part 25: Determination of 4-methyl-pentene in food simu

    31、lants Part 26: Determination of 1-octene and tetrahydrofuran in food simulants Part 27: Determination of 2,4,6-triamino-1,3,5-triazine in food simulants Part 28: Determination of 1,1,1-trimethylolpropane in food simulants Parts 1 to 8 are European Standards. Parts 9 to 28 are Technical Specification

    32、s. WARNING All chemicals are hazardous to health to a greater or lesser extent. It is beyond the scope of this Technical Specification to give instructions for the safe handling of all chemicals, that meet, in full, the legal obligations in all countries in which this Technical Specification may be

    33、followed. Therefore, specific warnings are not given and users of this Technical Specification should ensure that they meet all the necessary safety requirements in their own country. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries a

    34、re bound to announce this CEN Technical Specification: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switz

    35、erland and United Kingdom. DD CEN/TS 13130-20:20055 Introduction Epichlorohydrin, 1-chloro-2,3-epoxypropane, C3H5OCl, PM/Ref. No 16750, is a monomer used in the manufacture of certain plastics materials and articles, but mainly coatings intended to come into contact with foodstuffs. After manufactur

    36、e residual epichlorohydrin can remain in the finished product and may migrate into foodstuffs coming into contact with that product. This analytical method allows the determination of the residual content of epichlorohydrin in coatings. The method has been pre-validated by collaborative trial with t

    37、wo laboratories. NOTE A limit on the residual quantity of 1 mg/kg polymer in final product has been set. However, epichlorohydrin is mainly used in coatings on non-plastics substrates. The amount of coating on a final article, e.g. coated cans, cannot be determined with an acceptable accuracy. There

    38、fore, the residual content of epichlorohydrin in coatings cannot be determined. The area of a coating is easy to determine and so the amount of residual epichlorohydrin content can be determined in milligrams per square decimetre. DD CEN/TS 13130-20:20056 1 Scope This document, part of EN 13130, spe

    39、cifies an analytical procedure for the determination of residual epichlorohydrin in coatings. The method is appropriate for the quantitative determination of epichlorohydrin in the analyte concentration range of 5 ng/ml to 80 ng/ml of extract. In general this allows for the detection of epichlorohyd

    40、rin at the level of 1 mg/kg of polymer or in the case of coatings, where the amount of polymer cannot be determined, detection of 1 g epichlorohydrin per square decimetre of coating is feasible. In order to obtain reliable and reproducible results, it is essential that the method described in this p

    41、art of EN 13130 is followed as closely as possible. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including

    42、 any amendments) applies. EN 13130-1:2004, Materials and articles in contact with foodstuffs Plastics substances subject to limitation Part 1: Guide to test methods for the specific migration of substances from plastics to foods and food simulants and the determination of substances in plastics and

    43、the selection of conditions of exposure to food simulants. 3 Principle To determine the residual amount of epichlorohydrin in a coating, the sample material is extracted with dioxane for 6 h at room temperature. Subsequently, the extract is distilled by means of a micro-distillation. The concentrati

    44、on of epichlorohydrin in the distilled fraction thus obtained is determined by derivatization of the epoxide with an aromatic sulfonic acid, i.e. 9,10-dimethoxyanthracene-2-sulfonic acid (DAS), followed by reversed phase high performance liquid chromatography (HPLC) with fluorescence detection. Depe

    45、nding on the quality and type of the HPLC column, it is possible to separate the two isomers that are formed in the derivatization reaction of epichlorohydrin with DAS. Quantification is achieved by means of external standard calibration using dioxane solutions fortified with known amounts of epichl

    46、orohydrin. Confirmation of epichlorohydrin is carried out by normal phase HPLC with fluorescence detection. 4 Reagents NOTE All reagents should be of recognized analytical quality unless otherwise stated. DD CEN/TS 13130-20:20057 4.1 Analyte 4.1.1 Epichlorohydrin (C3H5OCl), purity 99 %. 4.2 Chemical

    47、s 4.2.1 Acetonitrile (HPLC grade). 4.2.2 9,10-Dimethoxyanthracene-2-sulfonic acid sodium salt, i.e. DAS-Na, C16H13NaO5S. 4.2.3 Dioxane 99,5 %, absolute; over molecular sieve (H2O 0,01 %). 4.2.4 Hexane 4.2.5 Cation exchange resin, strongly acid with sulfonic acids as functional groups, ion form H+. 4

    48、.2.6 Isopropanol 4.2.7 Methanol 4.2.8 Water, deionized (HPLC quality). 4.3 Preparation of the DAS reagent Dissolve approximately 100 mg DAS-Na (4.2.2) in 20 ml methanol/water (80/20). Heat the solution slightly to obtain a clear solution. In a glass beaker, wash an amount of the ion exchange resin (

    49、4.2.5) with methanol/water (80/20) and subsequently pour the slurry into a glass column with a diameter of 1 cm, until the resin has reached a height of 20 cm. Elute the DAS solution through the ion exchange resin and flush the column with a mixture of methanol/water (80/20). Start to collect the eluate at the moment the eluate has decreased to a pH of approximately pH 1 to pH 2. Continue collecting the eluate until the pH starts to increase. Evaporate the solution thus obtained to dryness by means of a nitrogen stream. NOTE The dry residue should be


    注意事项

    本文(CEN TS 13130-20-2005 Materials and articles in contact with foodstuffs - Plastics substances subject to limitation - Part 20 Determination of epichlorohydrin in plastics《和食品接触的材料和物.pdf)为本站会员(arrownail386)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开