IEC_60746-3-2002.pdf

INTERNATIONALSTANDARDIEC60746-3Second edition2002-06Expression of performance ofelectrochemical analyzers Part 3:Electrolytic conductivityExpression des qualits de fonctionnementdes analyseurs lectrochimiques Partie 3:Conductivit lectrolytiqueReference numberIEC 60746-3:2002(E)Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Publication numberingAs from 1 January 1997 all IEC publications are issued with a designation in the60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editionsThe IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,thebase publication incorporating amendment 1 and the base publication incorporatingamendments 1 and 2.Further information on IEC publicationsThe technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating tothis publication,including its validity,is available in the IEC Catalogue ofpublications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertakenby the technical committee which has prepared this publication,as well as the listof publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publicationsThe on-line catalogue on the IEC web site(www.iec.ch/catlg-e.htm)enablesyou to search by a variety of criteria including text searches,technicalcommittees and date of publication.On-line information is also available onrecently issued publications,withdrawn and replaced publications,as well ascorrigenda.IEC Just PublishedThis summary of recently issued publications(www.iec.ch/JP.htm)is alsoavailable by email.Please contact the Customer Service Centre(see below)forfurther information.Customer Service CentreIf you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.chTel:+41 22 919 02 11Fax:+41 22 919 03 00Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONALSTANDARDIEC60746-3Second edition2002-06Expression of performance ofelectrochemical analyzers Part 3:Electrolytic conductivityExpression des qualits de fonctionnementdes analyseurs lectrochimiques Partie 3:Conductivit lectrolytique IEC 2002 Copyright-all rights reservedNo part of this publication may be reproduced or utilized in any form or by any means,electronic ormechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.chJFor price,see current cataloguePRICE CODECommission Electrotechnique InternationaleInternational Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 60746-3 IEC:2002(E)CONTENTSFOREWORD.31Scope.52Normative references.53Definitions.54Procedure for specification.84.1Additional statements on sensor units.84.2Additional statements on electronic units.84.3Additional statements on complete analyzers.85Recommended standard values and ranges of influence quantities affecting theperformance of electronic units.86Verification of values.86.1General aspects.96.2Calibration.96.3Test solutions.96.4Test procedures.10Annex A(informative)Electrolytic conductivity values of potassium chloride calibrationsolutions and pure water.12Annex B(informative)Electrolytic conductivity values of aqueous sodium chloridesolutions.13Annex C(normative)Alternative procedures for measuring response times:delay(T10),rise(fall)(Tr,Tf)and 90%(T90)times.15Annex D(informative)Conductivity cells.16Bibliography.17Table A.1 Electrolytic conductivity values.12Table A.2 Electrolytic conductivity of pure water.12Table B.1 Conductivity of sodium chloride solutions at 18 C.13Table B.2 Temperature coefficients for low-concentration sodium chloride solutions.14Table B.3 Tentative corrections to sodium chloride solution temperature coefficients.14Copyright International Electrotechnical Commission Provided by IHS under license with IECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-60746-3 IEC:2002(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION_EXPRESSION OF PERFORMANCEOF ELECTROCHEMICAL ANALYZERS Part 3:Electrolytic conductivityFOREWORD1)The IEC(International Electrotechnical Commission)is a worldwide organization for standardization comprisingall national electrotechnical co