ISO INTERNATIONAL STANDARD 14362-3 First edition 2017-02 Textiles Methods for determination of certain aromatic amines derived from azo colorants - Part 3: Detection of the use of certain azo colorants, which may release 4-aminoazobenzene Textiles-Méthodes de détermination de certaines amines aromatiques dérivees de colorants azoiques - Partie 3: Detection de I'utilisation de certains colorants azoiques susceptibles de liberer du 4-aminoazobenzene Reference number IS014362-3:2017(E) os1 International Organization for Standardization @ IS0 2017 HEJIANG INSTOFSTANDARDIZATION C15956617 I without license from IHS IS0 14362-3:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS02017,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+412274909 47 [email protected] www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST.OF STANDARDIZRoISQ s1.7 - All rights reserved I by IHS unde etworking permitted without license from IHS IS0 14362-3:2017(E) Contents Page Foreword ..iv 1 Scope 2 Normative references .1 3 Terms and definition 4 General. ..2 5 Principle. ..2 6 Safety precautions .2 7 Reagents ..2 8 Apparatus. ..3 9 Procedure .4 9.1 General .4 9.2 Preparation of test specimens. 4 9.3 Colorant extraction for disperse dyes - Preparation with extraction .5 9.4 Textiles dyed with dyes other than disperse dyes-Preparation without extraction 5 9.5 Reductive cleavage. 5 9.6 Separation and concentration of 4-aminoazobenzene. 5 9.7 Calibration solution. .6 9.7.1 Calibration solution for sample preparation without extraction ..6 9.7.2 Calibration solution for sample preparation with extraction. .6 9.8 Check of the analytical system. .6 9.8.1 Sample preparation without extraction .6 9.8.2 Samplepreparationwithextraction ..6 9.9 Chromatographic analyses .6 10 Evaluation .7 10.1 Calculation ..7 10.2 Reliability of the method .7 11 Test report ..7 Annex A (informative) Chromatographic analyses ..8 Annex B (informative) Calculation ..14 Annex C (informative) Reliability of the method ..15 Annex D (informative) Assessment guide - Interpretation of analytical results ..16 iii vided by IHS under