Designation:C1414−01(Reapproved2014)StandardPracticeforTheSeparationofAmericiumfromPlutoniumbyIonExchange1ThisstandardisissuedunderthefixeddesignationC1414;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribestheuseofanionexchangetechniquetoseparateplutoniumfromsolutionscontaininglowconcentrationsofamericiumpriortomeasurementofthe241Ambygammacounting.1.2Thispracticecoverstheremovalofplutonium,butnotalltheotherradioactiveisotopesthatmayinterfereinthedeterminationof241Am.1.3Thispracticecanbeusedwhen241Amistobedeter-minedinsamplesinwhichtheplutoniumisintheformofmetal,oxide,orothersolidprovidedthatthesolidisappropri-atelysampledanddissolved(SeeTestMethodsC758,C759,andC1168).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C758TestMethodsforChemical,MassSpectrometric,Spectrochemical,Nuclear,andRadiochemicalAnalysisofNuclear-GradePlutoniumMetalC759TestMethodsforChemical,MassSpectrometric,Spectrochemical,Nuclear,andRadiochemicalAnalysisofNuclear-GradePlutoniumNitrateSolutionsC1168PracticeforPreparationandDissolutionofPlutoniumMaterialsforAnalysisC1268TestMethodforQuantitativeDeterminationofAm-ericium241inPlutoniumbyGamma-RaySpectrometryD1193SpecificationforReagentWater3.SummaryofPractice3.1Plutoniumisadsorbedfromanitricacid(HNO3)solu-tion(8M)ontoananionexchangeresin.Undertheseconditions,anegligibleamountofamericiumisadsorbedontotheresinandmaybedeterminedbygammacountingoftheeluateusingTestMethodC1268.4.SignificanceandUse4.1Thispracticeisapplicablewhensmallamountsof241Amarepresentinplutoniumsamples(seeTestMethods...
