Designation:D5411−21StandardPracticeforCalculationofAverageEnergyPerDisintegration(E¯)foraMixtureofRadionuclidesinReactorCoolant1ThisstandardisissuedunderthefixeddesignationD5411;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeappliestothecalculationoftheaverageenergyperdisintegration(E¯)foramixtureofradionuclidesinreactorcoolantwater.1.2Themicrocurie(µCi)isthestandardunitofmeasure-mentforthisstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,whichareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1066PracticeforSamplingSteamD1129TerminologyRelatingtoWaterD3370PracticesforSamplingWaterfromFlowingProcessStreamsD3648PracticesfortheMeasurementofRadioactivityD7282PracticeforSet-up,Calibration,andQualityControlofInstrumentsUsedforRadioactivityMeasurementsD7902TerminologyforRadiochemicalAnalyses2.2CodeofFederalRegulations:10CFR100ReactorSiteCriteria33.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthisstandard,refertoTerminologiesD1129andD7902.FortermsnotdefinedinthistestmethodorinTerminologiesD1129andD7902,refertootherpublishedglossaries.44.SummaryofPractice4.1Theaverageenergyperdisintegration,E¯(pronouncedEbar),foramixtureofrad...
