ISO INTERNATIONAL STANDARD 8799 Second edition 2009-03-15 Surface active agents Sulfated ethoxylated alcohols and alkylphenols - Determination of content of unsulfated matter Agents de surface - Sulfates d'alcools et d'alkylphenols éthoxyles - Détermination de la teneur en matiere insulfatee Reference number ISO 8799:2009(E) @ ISO 2009 yIHS under Not for Resale ISO 8799:2009(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISo Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTED DOCUMENT @ ISO2009 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means electronic or mechanical, including photocopying and microfilm, without permission in writing 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. + 4122 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ISO2009-All rightsreserved I without license from IHS Not for Resale ISO 8799:2009(E) Contents Page Foreword. 1 Scope 2 Normative references 3 Principle... 4 Reagents and materials 5 Apparatus 6 Sampling. 7 Procedure. 7.1 Testportion. 7.2 Preparation of the ion-exchange resins 7.2.1 Anion-exchange resin clean-up .... 7.2.2 Cation-exchange resin clean-up ... 7.3 Final preparation of resins.. 7.4 Arrangement of the mixed-bed exchange column, 7.5 Separation of unsulfated matter.... 7.6 Check of the ion-exchange resin . 8 Calculation and expression of results. 9 Precision.. 9.1 Repeatability limit 9.2 Reproducibility limit 10 Testreport Annex A (informative) Statistical and other data derived from the results of interlaboratory tests... 5 Bibliography Copyrght InternationalOrganizaisadardizaoghtsreserved ii from IHS Not for Resa