Designation:C1473−11StandardTestMethodforRadiochemicalDeterminationofUraniumIsotopesinUrinebyAlphaSpectrometry1ThisstandardisissuedunderthefixeddesignationC1473;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisapplicabletothedeterminationofuraniuminurineatlevelsofdetectiondependentonsamplesize,counttime,detectorbackground,andtraceryield.Itisdesignedasascreeningtoolfordetectionofpossibleexposureofoccupationalworkers.1.2Thistestmethodisdesignedfor50mLofurine.Thistestmethoddoesnotaddressthesamplingprotocolorsamplepreservationmethodsassociatedwithitsuse.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C859TerminologyRelatingtoNuclearMaterialsC1000TestMethodforRadiochemicalDeterminationofUraniumIsotopesinSoilbyAlphaSpectrometryC1163PracticeforMountingActinidesforAlphaSpectrom-etryUsingNeodymiumFluorideC1284PracticeforElectrodepositionoftheActinidesforAlphaSpectrometryD1193SpecificationforReagentWaterD3084PracticeforAlpha-ParticleSpectrometryofWaterD3648PracticesfortheMeasurementofRadioactivity3.SummaryofTestMethod3.1Aurinesamplewith232Utracersolutionaddediswet-ashedwithnitricacidandhydrogenperoxidetodestroyorganicmaterial.Theuranium-bearingsolutionisconvertedtoahydrochloricacidmedium.Uraniumisabsorbedonananionexchangecolumnfroma9Mhydrochloricacidsolutionandelutedwith0.1Mhydrochloricacidsolution.Theseparateduraniumispreparedforalphaspectrometricmeasurementeitherbyelectrodepositionontoametaldiskorcoprecipitati...
