Designation:D4266−96(Reapproved2009)´1StandardTestMethodsforPrecoatCapacityofPowderedIon-ExchangeResins1ThisstandardisissuedunderthefixeddesignationD4266;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Updated5.2editoriallyinJune2009.1.Scope1.1Thesetestmethodscoverthedeterminationoftheoperatingion-exchangecapacityofbothpowderedcation-exchangeresins(hydrogenform)andpowderedanion-exchangeresins(hydroxideform).Thesetestmethodsareintendedforuseintestingnewpowderedion-exchangeresinswhenusedforthetreatmentofwater.Thefollowingtwotestmethodsareincluded:SectionsTestMethodA—OperatingCapacity,Anion-ExchangeResin,HydroxideForm7to15TestMethodB—OperatingCapacity,Cation-ExchangeResin,HydrogenForm16to241.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1125TestMethodsforElectricalConductivityandResis-tivityofWaterD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2687PracticesforSamplingParticulateIon-ExchangeMa-terialsD4456TestMethodsforPhysicalandChemicalPropertiesofPowderedIonExchangeResinsE200PracticeforPreparation,Standardization,andStorageofStandardandReagentSolutionsforChemicalAnalysis3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1Fordefinitionsofothertermsusedinthesetestmethods,refertoTerminologyD1129.3.1.2powderedion-exchangematerial,n—anion-exchangeresinthathasundergonepost-manufacturingsizereductiontolessthan300µm.3.1.3resindosage,n—theweightofmixedresinappliedperunitareaofprecoat...
