ISO INTERNATIONAL STANDARD 21084 First edition 2019-02 Textiles - Method for determination of alkylphenols (AP) Textiles - Méthode de détermination de la teneur en alkylphénols (AP) Reference number IS0 21084:2019(E) so @ IS0 2019 IS0 21084:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 21084:2019(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references .1 3 Terms and definitions 4 Principle ..1 5 Reagents. .1 6 Apparatus .2 6.1 General .2 6.2 Apparatus and auxiliaries for preparing the sample .2 6.3 Chromatographicequipment .2 7 Procedure. .2 7.1 Standard preparation .2 7.2 Sample preparation .2 7.3 Sample extraction. .3 7.4 Sample analysis .3 8 Calculation and calibration .3 8.1 Calibration curve .3 8.2 External calibration 3 8.3 Calculation of each AP in sample .4 8.4 Reliability of the method .4 9 Test report ..4 Annex A (informative) Examples of chromatographic condition - GC-MS/MS .5 Annex B (informative) Examples of chromatographic condition - LC-MS/MS and LC-FLD ..8 Annex C (informative) Reliability ofthe method .10 @ IS0 2019 - All rights reserved iii