Designation:D6302−98(Reapproved2009)StandardPracticeforEvaluatingtheKineticBehaviorofIonExchangeResins1ThisstandardisissuedunderthefixeddesignationD6302;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeisintendedtoevaluatechangesinkineticperformanceofionexchangeresinsusedinmixedbedstoproducehighpuritywater.Withinstrictlimitations,italsomaybeusedforcomparingresinofdifferenttypes.Thisstandarddoesnotseektomimicactualoperatingconditions.Specificchallengesolutionsandconditionsarespecified.Attheoptionoftheuser,otherconditionsmaybetested.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2187TestMethodsforPhysicalandChemicalPropertiesofParticulateIon-ExchangeResinsD2687PracticesforSamplingParticulateIon-ExchangeMa-terialsD5391TestMethodforElectricalConductivityandResis-tivityofaFlowingHighPurityWaterSample3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthispractice,refertoTerminologyD1129.4.SummaryofPractice4.1Anapparatusisdescribedinwhichaspecifiedvolumeofregeneratedresinsampleismixedwithacorrespondingnewresin.Themixedbedthenisoperatedatacontrolledhighflowrateonaninfluentofknowncomposition,andthequalityoftheeffluentismeasuredbyconductivity,andifagreedupon,otherappropriateanalyticalprocedures.5.SignificanceandUse5.1Thispracticeisintendedtoevaluatechangesintheperformanceofionexchangeresinsusedinmixedbedsoperatingaspolishingsystemsforsolutionsoflowionic...
