Designation:C1287−10StandardTestMethodforDeterminationofImpuritiesinNuclearGradeUraniumCompoundsbyInductivelyCoupledPlasmaMassSpectrometry1ThisstandardisissuedunderthefixeddesignationC1287;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationof67ele-mentsinuraniumdioxidesamplesandnucleargradeuraniumcompoundsandsolutionswithoutmatrixseparationbyinduc-tivelycoupledplasmamassspectrometry(ICP-MS).TheelementsarelistedinTable1.Theseelementscanalsobedeterminedinuranylnitratehexahydrate(UNH),uraniumhexafluoride(UF6),triuraniumoctoxide(U3O8)anduraniumtrioxide(UO3)ifthesecompoundsaretreatedandconvertedtothesameuraniumconcentrationsolution.1.2Theelementsboron,sodium,silicon,phosphorus,potassium,calciumandironcanbedeterminedusingdifferenttechniques.Theanalyst’sinstrumentationwilldeterminewhichprocedureischosenfortheanalysis.1.3Thetestmethodfortechnetium-99isgiveninAnnexA1.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Warning—TheICP-MSisasourceofintenseultra-violetradiationfromtheradiofrequencyinducedplasma.Protectionfromradiofre-quencyradiationandUVradiationisprovidedbytheinstru-mentundernormaloperation.2.ReferencedDocuments2.1ASTMStandards:2C753SpecificationforNuclear-Grade,SinterableUraniumDioxidePowderC776SpecificationforSinteredUraniumDioxidePelletsC787SpecificationforUraniumHexafluorideforEnrich-mentC788SpecificationforNuclear-GradeUranylNitrateSolu-tionorCrystalsC967SpecificationforUraniumOreConcentrateC996SpecificationforUraniumHexafluorideEnrichedtoLessThan5%235UC1346Practic...
