ISO INTERNATIONAL STANDARD 13099-1 First edition 2012-06-15 Colloidal systems Methods for zeta- potential determination - Part 1: Electroacoustic and electrokinetic phenomena Systemes colloidaux Méthodes de détermination du potentiel zéta - Partie 1: Phénomenes électroacoustiques et électrocinétiques Reference number ISO 13099-1:2012(E) ISO @ ISO 2012 IHS under itted without license from IHS Not for Resale ISO 13099-1:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 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. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2012 -All rights reserved No reproductic etworking permitted without license from IHS Not for Resale ISO 13099-1:2012(E) Contents Page Foreword .iv Introduction 1 Scope 2 Terms and definitions. 2.1 Electric double layer. 2.2 Electrokinetic phenomena... 2.3 Electroacoustic phenomena. 3 Symbols. 4 Theory: general comments. 6 5 Elementary theories, Smoluchowski's limit for electrokinetics 5.1 General.... 5.2 Electrophoresis.. 5.3 Electroosmosis. 8 5.4 Streaming current or potential. 8 5.5 Sedimentation potential or current 8 6 Elementary theories, Smoluchowski's limit for electroacoustics. 8 6.1 General... 8 6.2 O'Brien's theory for dynamic electrophoretic mobility.. 9 6.3 Smoluchowski limit theory for dynamic electrophoretic mobility 9 7 Advanced theories. 10 8 Equilibrium dilution and other sample modifications Annex A (informative) Electric double layer models Annex B (informative) Surface conductivity. ..18 AnnexC(informative)Debyelength.. .20 Annex D (informative) Advanced electrophoretic theories .21 AnnexE(informative)Advancedelectroacoustictheories .24 Bibliography 26 ili cense from IHS Not for Resale