—Determinationofreactivity—PotentiometrictitrationmethodwithhydrochloricacidICS65.080;91.100.10 ©BSI2008ISBN9780580579516NationalforewordThisBritishStandardistheUKimplementationofEN13971:2008.ItsupersedesBSEN13971:2002whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeCII/37,Fertilizersandrelatedchemicals.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.Amendments/corrigendaissuedsincepublicationDateComments:2002EnglishVersionCarbonatelimingmaterials-Determinationofreactivity-PotentiometrictitrationmethodwithhydrochloricacidAmendementsminérauxbasiquescarbonatés-Déterminationdelaréactivité-Méthodepartitrationpotentiométriqueàl'acidechlorhydriqueCarbonatischeKalke-BestimmungderReaktivität-PotentiometrischesTitrationsverfahrenmitSalzsäureThisEuropeanStandardwasapprovedbyCENon28December2007.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2008CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN13971:2008:E(E)2ContentspageForeword......................................................................................................................................................................3Introduction.................................................................................................................................................................41Scope..............................................................................................................................................................42Normativereferences....................................................................................................................................43Principle.........................................................................................................................................................44Apparatus......................................................................................................................................................45Reagents.........................................................................................................................................................56Preparationofthetestsample.....................................................................................................................57Procedure.......................................................................................................................................................68Expressionofresults....................................................................................................................................89Precision.........................................................................................................................................................910Testreport......................................................................................................................................................9AnnexA(normative)Preparationofthetestportionoflimingmaterialscoarserthan1mm..........................10AnnexB(normative)Arrangementofthetestapparatus.....................................................................................11Bibliography..............................................................................................................................................................13(E)3ForewordThisdocument(EN13971:2008)hasbeenpreparedb