INTERNATIONALSTANDARDISO7875-1:1996 TECHNICAL CORRIGENDUM 1 TSO Published 2003-07-01 INTERNATIONALORGANIZATIONFORSTANDARDIZATION MEKYHAPOAHAAOPTAHM3ALIMAOCTAHAAPTM3ALIMM Water quality Determination of surfactants Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS) TECHNICAL CORRIGENDUM 1 Qualite de I'eau-Dosage des agents de surface Partie 1: Dosage des agents de surface anioniques par mesurage de I'indice au bleu de methylene (indice SABM) RECTIFICATIFTECHNIQUE1 Technical Corrigendum 1 to ISO 7875-1:1996 was prepared by Technical Committee ISO/TC 147, Water Quality, Subcommittee Sc 2, Physical, chemical and biochemical methods. Page 4, 4.11, Note In the first line, replace “dodecylbenze" by “dodecylbenzene". Page 7, Table 1 ReplaceTable1bythefollowingtable Table 1 Conversion factor Substance Relative molecular mass DBSSS/substance Dodecyl benzene sulfonic acid, sodium salt (DBSSS) 348,48 1,000 0 Dodecane-1-sulfonic acid, sodium salt 272,38 1,279 4 Dodecane-1-sulfuric acid, sodium salt 288,38 1,208 4 Dioctyl sulfosuccinic acid, sodium salt 444,55 0,783 9 Dodecyl benzene sulfonic acid methyl ester (DBSME) 340,48 1,023 5 ICS 13.060.50 Ref. No. ISO 7875-1:1996/Cor.1:2003(E) @IsO 2003 - All rights reserved onforStandardizationrland No reproduction or networking permited without license from IHS Not for Resale 4851903 0691639 299 STD.IS0 7875-1-EnGL 1996 INTERNATIONAL ISO STANDARD 7875-1 Second edition 1996-12-15 Water quality --- Determination of surfactants - Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS) QualitedeI'eau---Dosagedesagentsdesurface Partie 1: Dosage des agents de surface anioniques par mesurage de I'indice au bleu de méthylene (indice SABM) This material is reproduced from Iso documents under International Organization for Standardization (Iso) Copyright License number IHS/ic/1996. Not for resale. No part of these ISo documents may be reproduced in any form, eiectronic retrievai system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of Iso (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41227341079),IHsortheISoLicensor'smembers. ISO Reference number 1SO 7875-1:1996(E) Copyright International Organization for Standardization No reproduction or Not for Resale 7875-1-ENGL 1996 STD.ISO 0h9T690 E06T5h TOO ISO 7875-1:1996(E) Foreword IsO (the International Organization for Standardization) is a worldwide fed- eration of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out through IsO technical committees. Each member body interested in a subject for represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting avote. International Standard ISO 7875-1 was prepared by Technical Committee ISO/TC 147, Water quality. Subcommittee SC 2, Physical, chemical, biochemical methods. This second edition cancelsandreplacesthefirst edition (ISO 7875-1:1984, of which it constitutes a technical revision. IsO 7875 consists of the following parts, under the general title Water qualityDetermination of surfactants: Part 1: Determination of anionic surfactants by measurement of the methylene blue index (MBAS) Part 2: Determination of non-ionic surfactants using Dragendorff reagent @ISO1996 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, inciuding photocopying and microfilm, without pe