ISO INTERNATIONAL STANDARD 17293-1 First edition 2014-04-01 Surface active agents Determination of chloroacetic acid (chloroacetate) in surfactants - Part 1: HPLC method Agents de surface - Determination de I'acide chloroacétique (chloroacétate) dans les agents tensioactifs- Partie 1: Méthode CLHP Reference number ISO 17293-1:2014(E) LSO @ IS0 2014 HS under Not for Resale IS0 17293-1:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2014 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 Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 17293-1:2014(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Principle. 4 Reagents 4.1 General ..1 5 Apparatus .2 6 Procedures .2 6.1 HPLC conditions. 2 6.2 Calibration .3 6.3 Sampling and analysis 3 7 Results and calculation. .3 7.1 General .3 7.2 The content of monochloroacetic acid ..4 7.3 The content of dichloroacetic acid. 4 8 Precision ..4 8.1 Repeatability limit. 8.2 Reproducibility limit ..4 9 Test report .4 Annex A (informative) Preliminary treatment of betaine sample ..6 Annex B (informative) Typical chromatogram .8 iii ded by IHS under lic ense with ISt ed without license from IHS Not for Resale