1、July 2017 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 59.140.30!%guQ“2688246www.din.deDIN
2、 EN ISO 20137Leather Chemical tests Guidelines for testing critical chemicals in leather (ISO 20137:2017);English version EN ISO 20137:2017,English translation of DIN EN ISO 20137:2017-07Leder Chemische Prfverfahren Richtlinien fr die Prfung kritischer Chemikalien in Leder (ISO 20137:2017);Englische
3、 Fassung EN ISO 20137:2017,Englische bersetzung von DIN EN ISO 20137:2017-07Cuir Essais chimiques Lignes directrices pour les essais de produits chimiques critiques sur le cuir (ISO 20137:2017);Version anglaise EN ISO 20137:2017,Traduction anglaise de DIN EN ISO 20137:2017-07www.beuth.deDocument com
4、prises 20 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.07.17 DIN EN ISO 20137:2017-07 2 A comma is used as the decimal marker. National foreword This document (EN ISO 20137:2017) has been prepared by Technical Committee IULT
5、CS “International Union of Leather Technologists and Chemists Societies” in collaboration with Technical Committee CEN/TC 289 “Leather” (Secretariat: UNI, Italy). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing
6、), Working Committee NA 062-05-52 AA “Chemical test methods of leather”. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4045 DIN EN ISO 4045 ISO 5398-1 DIN EN ISO 5398-1 ISO 5398-2 DIN EN ISO 5398-2 ISO 5398-3 DIN EN ISO 5398-3 ISO 539
7、8-4 DIN EN ISO 5398-4 ISO 13365 DIN EN ISO 13365 ISO 17070 DIN EN ISO 17070 ISO 17072-1 DIN EN ISO 17072-1 ISO 17072-2 DIN EN ISO 17072-2 ISO 17075-1 DIN EN ISO 17075-1 ISO 17075-2 DIN EN ISO 17075-1 ISO 17226-1 DIN EN ISO 17226-1 ISO 17226-3 DIN EN ISO 17226-3 ISO 17234-1 DIN EN ISO 17234-1 ISO 172
8、34-2 DIN EN ISO 17234-2 ISO 18218-1 DIN EN ISO 18218-1 ISO 18218-2 DIN EN ISO 18218-2 ISO 18219 DIN EN ISO 18219 ISO 19070 DIN EN ISO 19070 ISO/TR 16178 DIN CEN ISO/TR 16178 (DIN SPEC 53268) ISO/TS 16179 DIN CEN ISO/TS 16179 (DIN SPEC 91179) ISO/TS 16181 DIN CEN ISO/TS 16181 (DIN SPEC 91181) ISO/TS
9、16186 DIN CEN ISO/TS 16186 (DIN SPEC 53280) ISO/TS 16189 DIN CEN ISO/TS 16189 (DIN SPEC 52411) ISO/TS 16190 DIN CEN ISO/TS 16190 (DIN SPEC 52412) DIN EN ISO 20137:2017-07 3 National Annex NA (informative) Bibliography DIN CEN ISO/TR 16178 (DIN SPEC 53268), Footwear Critical substances potentially pr
10、esent in footwear and footwear components DIN CEN ISO/TR 16179 (DIN SPEC 91179), Footwear Critical substances potentially present in footwear and footwear components Determination of organotin compounds in footwear materials DIN CEN ISO/TR 16181 (DIN SPEC 91181), Footwear Critical substances potenti
11、ally present in footwear and footwear components Determination of phthalates in footwear materials DIN CEN ISO/TR 16186 (DIN SPEC 53280), Footwear Critical substances potentially present in footwear and footwear components Test method to quantitatively determine dimethylfumarate (DMFU) in footwear m
12、aterials DIN CEN ISO/TR 16189 (DIN SPEC 52411), Footwear Critical substances potentially present in footwear and footwear components Test method to quantitatively determine dimethylformamide in footwear materials DIN CEN ISO/TR 16190 (DIN SPEC 52412), Footwear Critical substances potentially present
13、 in footwear and footwear components Test method to quantitatively polycyclic aromatic hydrocarbons (PAH) in footwear materials DIN EN ISO 4045, Leather Chemical tests Determination of pH DIN EN ISO 5398-1, Leather Chemical determination of chromic oxide content Part 1: Quantification by titration D
14、IN EN ISO 5398-2, Leather Chemical determination of chromic oxide content Quantification by colorimetric determination DIN EN ISO 5398-3, Leather Chemical determination of chromic oxide content Part 3: Quantification by atomic absorption spectrometry DIN EN ISO 5398-4, Leather Chemical determination
15、 of chromic oxide content Part 4: Quantification by inductively coupled plasma Optical emission spectrometer (ICP-OES) DIN EN ISO 13365, Leather Chemical tests Determination of the preservative (TCMTB, PCMC, OPP, OIT) content in leather by liquid chromatography DIN EN ISO 17070, Leather Chemical tes
16、ts Determination of tetrachlorophenol-, trichlorophenol-, dichlorophenol-, monochlorophenol-isomers and pentachlorophenol content DIN EN ISO 17072-1, Leather Chemical determination of metal content Part 1: Extractable metals DIN EN ISO 17072-2, Leather Chemical determination of metal content Part 2:
17、 Total metal content DIN EN ISO 17075-1, Leather Chemical determination of chromium(VI) content in leather Part 1: Colorimetric method DIN EN ISO 20137:2017-07 4 DIN EN ISO 17075-2, Leather Chemical determination of chromium(VI) content in leather Part 2: Chromatographic method DIN EN ISO 17226-1, L
18、eather Chemical determination of formaldehyde content Part 1: Method using high performance liquid chromatography DIN EN ISO 17226-3, Plastics Determination of tensile properties Part 3: Leather Chemical determination of formaldehyde content DIN EN ISO 17234-1, Leather Chemical tests for the determi
19、nation of certain azo colorants in dyed leathers Part 1: Determination of certain aromatic amines derived from azo colorants DIN EN ISO 17234-2, Leather Chemical tests for the determination of certain azo colorants in dyed leathers Part 2: Determination of 4-aminoazobenzene DIN EN ISO 18218-1, Leath
20、er Determination of ethoxylated alkylphenols Part 1: Direct method DIN EN ISO 18218-2, Leather Determination of ethoxylated alkylphenols Part 2: Indirect method DIN EN ISO 18219, Leather Determination of chlorinated hydrocarbons in leather Chromatographic method for short-chain chlorinated paraffins
21、 (SCCP) DIN EN ISO 19070, Leather Chemical determination of N-methyl-2-pyrrolidone (NMP) in leather EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 20137 March 2017 ICS 59.140.30 English Version Leather - Chemical tests - Guidelines for testing critical chemicals in leather (ISO 20137:2017)
22、 Cuir - Essais chimiques - Lignes directrices pour les essais de produits chimiques critiques sur le cuir(ISO 20137:2017) Leder - Chemische Prfverfahren - Richtlinien fr die Prfung kritischer Chemikalien in Leder(ISO 20137:2017) This European Standard was approved by CEN on 14 February 2017. CEN mem
23、bers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applicat
24、ion to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Manage
25、ment Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
26、 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue
27、 Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 20137:2017 EEuropean foreword .3Introduction 51 Scope . 62 Normative references 63 Terms and definitions . 74 Chemical substances potentially foun
28、d in leather 74.1 Chemical test methods for substances used by the leather industry with no legal restrictions for leather . 74.2 Chemical test methods for substances previously used by the leather industry 84.3 Chemical test methods for substances not used by the leather industry. 8Annex A (informa
29、tive) Substances lists 13Bibliography .16Contents PageDIN EN ISO 20137:2017-07 EN ISO 20137:2017 (E) 2Foreword .4European foreword This document (EN ISO 20137:2017) has been prepared by Technical Committee IULTCS “International Union of Leather Technologists and Chemists Societies” in collaboration
30、with Technical Committee CEN/TC 289 “Leather” the secretariat of which is held by UNI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2017, and conflicting national standards shall be w
31、ithdrawn at the latest by September 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regula
32、tions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
33、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 20137:2017 has been approved by CEN as EN ISO 20137:2017 without any modification. DIN E
34、N ISO 20137:2017-07 EN ISO 20137:2017 (E) 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member
35、 body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Elect
36、rotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of
37、 ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be he
38、ld responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www .iso .org/ patents).Any trade name used in this document is informa
39、tion given for the convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO
40、) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by the Chemical Tests Commission of the International Union of Leather Technologists and Chemists Societies (IUC Commission, IULTCS) in collaboration with the Eur
41、opean Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, the secretariat of which is held by UNI, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).IULTCS, originally formed in 1897, is a world-wide organization of professional
42、 leather societies to further the advancement of leather science and technology. IULTCS has three Commissions, which are responsible for establishing international methods for the sampling and testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of tes
43、t methods for leather.DIN EN ISO 20137:2017-07 EN ISO 20137:2017 (E) 4 IntroductionThis document was prepared in collaboration by IULTCS and by CEN/TC 289 Leather in order to provide an overview of chemical test methods for the leather industry. This can be used by those involved in setting specific
44、ations for leather, especially for those parameters relating to restricted chemical substances.Regulations restrict the use of certain chemicals in consumer products. The leather industry has already taken actions by replacing the restricted substances or assuming the limits imposed by these restric
45、tions. Many brand name manufacturers require certificates of compliance from their suppliers but too often these refer to analytical methods from other industries that are not suitable for use in testing leather.Through the collaboration of IULTCS and CEN/TC 289, a considerable number of leather spe
46、cific EN and ISO standard test methods have been developed for the chemical analysis of leather. The International Standards are tested by inter-laboratory studies, have been proven scientifically valid and are subjected to updating processes according to ISO protocols.Chemical analysis of leatherLe
47、ather is a complex substrate to chemically analyse. After tanning, leather typically undergoes wet-processing in aqueous media at low temperatures (60 C) and in an acid pH range of 3,5 to 5,5. The characteristic properties of leather are achieved by mostly using a range of anionic retanning agents (
48、natural and/or synthetic), polymers and oils, as well as anionic dyes for achieving the required colour. In analytical procedures, when leather is extracted, some of these substances can be removed and make a complex matrix for the analysis. This should be considered when establishing quantification limits for leather analyses. Too often unrealistic limits established in aqueous solutions, e.g. waste water analysis, are quoted in specifications for leather.This document gives an overview of those internationally accepted chemical
