Designation:C1853−17StandardTestMethodforTheDeterminationofCarbon(Total)ContentinMixedOxide((U,Pu)O2)SinteredPelletsbyDirectCombustion-InfraredDetectionMethod1ThisstandardisissuedunderthefixeddesignationC1853;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodisanalternativetoTestMethodC698forthedeterminationofcarboninnucleargradesinteredmixedoxide(MOX)fuelpellets.ThemethodforthedeterminationofcarbonpresentedinTestMethodC698consistsofcombustingcarboncontainedinMOXpelletswithoxygeninahigh-frequencyinductionfurnaceanddetectingtheresultingcarbondioxideusingathermalconductivitycell.ThemethodforthedeterminationofcarbonpresentedinthistestmethodconsistsofcombustingcarboncontainedinMOXpelletswithoxygeninahigh-frequencyinductionfurnaceandsubsequentdetectionoftheresultingcarbondioxide(CO2)usinganon-dispersiveinfrareddetector(NDIR).SulfuroxideisstrippedfromthecarriergasstreambyacellulosefilterpriortothedetectionofCO2.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandardmayinvolvehazardousmaterial,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2C698TestMethodsforChemical,MassSpectrometric,andSpectrochemicalAnalysisofNuclear-GradeMixedOx-ides((U,Pu...
