Designation:C1219−05(Reapproved2009)StandardTestMethodsforArsenicinUraniumHexafluoride1ThisstandardisissuedunderthefixeddesignationC1219;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodsareapplicabletothedeterminationoftotalarsenicinuraniumhexafluoride(UF6)byatomicabsorptionspectrometry.Twotestmethodsaregiven:TestMethodA—ArsineGeneration-AtomicAbsorption(Sections5-10),andTestMethodB—GraphiteFurnaceAtomicAbsorp-tion(AppendixX1).1.2Thetestmethodsareequivalent.Thelimitofdetectionforeachtestmethodis0.1µgAs/gUwhenusingasamplecontaining0.5to1.0gU.TestMethodBdoesnothavethecompletecollectiondetailsforprecisionandbiasdatathusthemethodappearsasanappendix.1.3TestMethodAcoversthemeasurementofarsenicinuranylfluoride(UO2F2)solutionsbyconvertingarsenictoarsineandmeasuringthearsinevaporbyflameatomicabsorp-tionspectrometry.1.4TestMethodButilizesasolventextractiontoremovetheuraniumfromtheUO2F2solutionpriortomeasurementofthearsenicbygraphitefurnaceatomicabsorptionspectrom-etry.1.5BothinsolubleandsolublearsenicaremeasuredwhenUF6ispreparedaccordingtoTestMethodC761.1.6ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C761TestMethodsforChemical,MassSpectrometric,Spectrochemical,Nuclear,andRadiochemicalAnalysisofUraniumHexafluorideC787SpecificationforUraniumHexafluorideforEnrich-mentD1193SpecificationforReagentWater3.SummaryofTestMethod3.1ArsineGeneration-AtomicAbsorptionSpectrometryMethod—ThesampleofUF6ishydrolyzedandtheUO2F2...
