1、May 2017 English price group 12No 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 59.080.01!%dh“2659669www.din.deDIN E
2、N ISO 14362-3Textiles Methods for determination of certain aromatic amines derived from azo colorants Part 3: Detection of the use of certain azo colorants, which may release 4aminoazobenzene (ISO 143623:2017);English version EN ISO 143623:2017,English translation of DIN EN ISO 14362-3:2017-05Textil
3、ien Verfahren fr die Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen Teil 3: Nachweis der Verwendung bestimmter Azofarbstoffe, die 4Aminoazobenzol freisetzenknnen (ISO 143623:2017);Englische Fassung EN ISO 143623:2017,Englische bersetzung von DIN EN ISO 14362-3:2017-05Textiles Mthodes de
4、 dtermination de certaines amines aromatiques drives de colorants azoques Partie 3: Dtection de lutilisation de certains colorants azoques susceptibles de librer du 4aminoazobenzne (ISO 143623:2017);Version anglaise EN ISO 143623:2017,Traduction anglaise de DIN EN ISO 14362-3:2017-05SupersedesDIN EN
5、 143623:201209www.beuth.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.05.17 DIN EN ISO 14362-3:2017-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 14362-3:2017) has
6、 been prepared by Technical Committee CEN/TC 248 “Textiles and textile products” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee ISO/TC 38 “Textiles”. The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee
7、Materials Testing), Working Committee NA 062-05-12 AA “Testing methods for separation and chemistry of textile fibres”. The DIN Standards corresponding to the International Standards referred to in this document are follows: ISO 3696 DIN ISO 3696 ISO 14362-1 DIN EN ISO 14362-1 Amendments This standa
8、rd differs from DIN EN 14362-3:2012-09 as follows: a) the extraction has been changed from chlorbenzene to xylene; b) the methods with and without extraction have been separated as the combined method no longer exists; c) the standard has been editorially revised. Previous editions DIN EN 14362-3: 2
9、012-09 National Annex NA (informative) Bibliography DIN EN ISO 14362-1, Textiles Methods for determination of certain aromatic amines derived from azo colorants Part 1: Detection of the use of certain azo colorants accessible with and without extracting the fibres DIN ISO 3696, Water for analytical
10、laboratory use Specification and test methods EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14362-3 February 2017 ICS 59.060.01 Supersedes EN 14362-3:2012English Version Textiles - Methods for determination of certain aromatic amines derived from azo colorants - Part 3: Detection of the u
11、se of certain azo colorants, which may release4-aminoazobenzene (ISO 14362-3:2017) Textiles - Mthodes de dtermination de certaines amines aromatiques drives de colorants azoques - Partie 3: Dtection de lutilisation de certains colorants azoques susceptibles de librer du4-aminoazobenzne (ISO 14362-3:
12、2017) Textilien - Verfahren fr die Bestimmung bestimmter aromatischer Amine aus Azofarbstoffen - Teil 3: Nachweis der Verwendung gewisser Azofarbstoffe, die 4-Aminoazobenzol freisetzen knnen(ISO 14362-3:2017) This European Standard was approved by CEN on 21 December 2016. CEN members are bound to co
13、mply 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 application to the CEN-CENEL
14、EC 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 Management Centre has the
15、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, Lithuania, Luxembou
16、rg, 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 Marnix 17, B-1000 B
17、russels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14362-3:2017 EEuropean foreword .31 Scope . 52 Normative references 53 Terms and definition 54 General 65 Principle 66 Safety precautions 67 Reagents 68 Apparatus . 7
18、9 Procedure. 89.1 General . 89.2 Preparation of test specimens . 89.3 Colorant extraction for disperse dyes Preparation with extraction 99.4 Textiles dyed with dyes other than disperse dyes Preparation without extraction . 99.5 Reductive cleavage . 99.6 Separation and concentration of 4-aminoazobenz
19、ene . 99.7 Calibration solution . 109.7.1 Calibration solution for sample preparation without extraction 109.7.2 Calibration solution for sample preparation with extraction 109.8 Check of the analytical system 109.8.1 Sample preparation without extraction . 109.8.2 Sample preparation with extraction
20、 109.9 Chromatographic analyses 1010 Evaluation . 1110.1 Calculation . 1110.2 Reliability of the method . 1111 Test report 11Annex A (informative) Chromatographic analyses . 12Annex B (informative) Calculation.18Annex C (informative) Reliability of the method 19Annex D (informative) Assessment guide
21、 Interpretation of analytical results .20Contents PageDIN EN ISO 14362-3:2017-05 EN ISO 14362-3:2017 (E) 2Foreword . 4European foreword This document (EN ISO 14362-3:2017) has been prepared by Technical Committee ISO/TC 38 “Textiles“ in collaboration with Technical Committee CEN/TC 248 “Textiles and
22、 textile products” the secretariat of which is held by BSI. 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 August 2017, and conflicting national standards shall be withdrawn at the latest by Augu
23、st 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. This document supersedes EN 14362-3:2012. According to the CEN-CENELEC Intern
24、al Regulations, 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, Ire
25、land, Italy, 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 14362-3:2017 has been approved by CEN as EN ISO 14362-3:2017 without any modifi
26、cation. DIN EN ISO 14362-3:2017-05 EN ISO 14362-3:2017 (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 committ
27、ees. Each member 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 Int
28、ernational Electrotechnical 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 di
29、fferent types of 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
30、 shall not be held 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 doc
31、ument is information given for the convenience of users and does not constitute an endorsement.For an explanation on 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) principles in the
32、 Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by the European Committee Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile products, in collaboration with ISO Technical Committee TC 38, Textiles, in acco
33、rdance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement).This first edition of ISO 14362-3 cancels and replaces ISO 24362-3:2014, which has been technically revised.The following is a list of the major technical changes between this edition and ISO 24362-3:2014: addi
34、tion of a new Clause 3 and renumbered; changes to 7.1 to clarify the preparation and use of sodium dithionite solution; changes to Clause 9 “Procedure” to improve the method, including using xylene as substitute for chlorobenzene (reasons: lower toxicity and lower adverse environmental effect of xyl
35、ene).A list of all parts in the ISO 14362 series can be found on the ISO website.DIN EN ISO 14362-3:2017-05 EN ISO 14362-3:2017 (E) 4 1 ScopeAzo colorants that are able to form 4-aminoazobenzene, generate under the conditions of ISO 14362-1, the amines aniline and 1,4-phenylenediamine. The presence
36、of these 4-aminoazobenzene colorants cannot be reliably ascertained without additional information (e.g. the chemical structure of the colorant used) or without a special procedure.This document is supplementary to ISO 14362-1 and describes a special procedure to detect the use, in commodities, of c
37、ertain azo colorants, which may release 4-aminoazobenzene, and that are accessible to reducing agent without extraction, particularly concerning textiles made of cellulose and protein fibres (e.g. cotton, viscose, wool, silk), and accessible by extracting the fibres (e.g. polyester or imitation leat
38、her).For certain fibre blends, in 9.3 and 9.4 (with and without extraction) may need to be applied.The procedure also detects 4-aminoazobenzene (Solvent Yellow 1), which is already available as free amine in commodities without reducing pre-treatment.The use of certain azo colorants, which may relea
39、se, by reductive cleavage of their azo group(s), one or more of the other aromatic amines listed in the Regulation (EC) No 1907/2006 of the European Parliament and of the Council on the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH) as regards Annex XVII, except 4-amino
40、azobenzene, cannot be determined quantitatively with this method.2 Normative referencesThe following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated refe
41、rences, the latest edition of the referenced document (including any amendments) applies.ISO 3696, Water for analytical laboratory use Specification and test methodsISO 14362-1:2017, Textiles Methods for determination of certain aromatic amines derived from azo colorants Part 1: Detection of the use
42、 of certain azo colorants accessible with and without extracting the fibres3 Terms and definitionNo terms and definitions are listed in this document.DIN EN ISO 14362-3:2017-05 EN ISO 14362-3:2017 (E)5 ISO and IEC maintain terminological databases for use in standardization at the following addresse
43、s: IEC Electropedia: available at h t t p :/ www .electropedia .org/ ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp4 GeneralCertain azo colorants may release, by reductive cleavage of azo group(s), 4-aminoazobenzene.Table 1 4-aminoazobenzeneaNo. CAS number Index number EC n
44、umber Substance22 60093 611008004 2004536 4-aminoazobenzeneaProscribed aromatic amine under Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), establishing a Europ
45、ean Chemicals Agency.5 PrincipleAfter selection of a coloured test specimen from the textile article, the test specimen is tested according to the method of the colorant extraction for disperse dyes and/or the method of the direct reduction for the other classes of colorants (pigments and/or dyes) (
46、see ISO 14362-1).The textile sample or the residue of the sample extraction is treated with sodium dithionite in an alkaline solution at 40 C in a closed vessel. 4-aminoazobenzene, which is released in the process, is transferred to a t-butyl methyl ether phase by means of liquid-liquid extraction.
47、An aliquot of the t-butyl methyl ether phase is used for analysis. The detection and determination of 4-aminoazobenzene can be performed using chromatography (see Annex A).If 4-aminoazobenzene is detected by one chromatographic method, then confirmation shall be made using one or more alternative me
48、thods.6 Safety precautionsWARNING 4-aminoazobenzene is classified as a substance known to be or suspected to be human carcinogen.Any handling and disposal of these substances shall be in strict accordance with the appropriate national health and safety regulations.It is the users responsibility to use safe and proper techniques in handling materials in this test method. Consult manufacturers for specific details, such as material safety data sheets and other recommendations.7 Rea
