INTERNATIONAL STANDARD ISO 7393-1:1985 TECHNICAL CORRIGENDUM 1 Published 2001-03-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ·MEKIYHAPOAHA OPTAHW3ALM9 O CTAHIAPTW3ALMM · ORGANISATION INTERNATIONALE DE NORMALISATION Water quality Determination of free chlorine and total chlorine Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine TECHNICAL CORRIGENDUM 1 Qualite de I'eau - Dosage du chlore libre et du chlore total - Partie 1: Methode titrimetrique a la N,N-diethylphenylene-1,4 diamine RECTIFICATIF TECHNIQUE 1 Technical Corrigendum 1 to International Standard ISO 7393-1:1985 was prepared by Technical Committee ISO/TC 147, Water quality, Subcommittee SC 2, Physical, chemical and biochemical methods. Page 2 In 4.5.2 Standardization of the solution, replace the existing formula with the following: C2 ICS 13.060.50 Ref. No. ISO 7393-1:1985/Cor.1:2001(E) @ IsO 2001 - All rights reserved CopyrightIntemaoaganizatonstandadization Not for Resale E905500 E06T5h 7393 PT 1-85 4 h-26- 45 7393/1 (TSO nternational Standard INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAA OPTAHW3ALWA NO CTAHAAPTM3AUWVORGANISATION INTERNATIONALE DE NORMALISATION Water quality - Determination of free chlorine and total chlorine - Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine Qualite de I'eau -- Dosage du chlore libre et du chlore total - Partie 1: Méthode titrimétrique a la N, N-diethylphenylene-1,4 diamine First edition 1985-09-15 Ref. No. ISO 7393/1-1985 (E) UDC 543.3 : 543.24 : 546.13 7393/1-1985 Descriptors : water, quality, chemical analysis, determination of content, chlorine, volumetric analysis. Price based on 8 pages yright International Organization for Standardization d without license from IHS Not for Resale 4851903 0055064 6 7393 PT 1-5 Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normaily carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has mental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. They are approved in accordance with IsO procedures requiring at least 75 % approval by the member bodies voting. International StandardISO 7393/1was preparedbyTechnical Committee ISO/TC 147,Water quality. @ International Organization for Standardization, 1985 Printed in Switzerland Copyright International Organization for Standardization Not for Resale