Designation:C1316−08(Reapproved2017)StandardTestMethodforNondestructiveAssayofNuclearMaterialinScrapandWastebyPassive-ActiveNeutronCountingUsing252CfShuffler1ThisstandardisissuedunderthefixeddesignationC1316;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThistestmethodcoversthenondestructiveassayofscrapandwasteitemsforU,Pu,orboth,usinga252Cfshuffler.Shufflermeasurementshavebeenappliedtoavarietyofmatrixmaterialsincontainersofuptoseveral100L.Correctionsaremadefortheeffectsofmatrixmaterial.Applicationsofthistestmethodincludemeasurementsforsafeguards,accountability,TRU,andUwastesegregation,disposal,andprocesscontrolpurposes(1,2,3).21.1.1Thistestmethodusespassiveneutroncoincidencecounting(4)tomeasurethe240Pu-effectivemass.IthasbeenusedtoassayitemswithtotalPucontentsbetween0.03gand1000g.ItcouldbeusedtomeasureotherspontaneouslyfissioningisotopessuchasCmandCf.Itspecificallydescribestheapproachusedwithshiftregisterelectronics;however,itcanbeadaptedtootherelectronics.1.1.2ThistestmethodusesneutronirradiationwithamoveableCfsourceandcountingofthedelayedneutronsfromtheinducedfissionstomeasurethe235Uequivalentfissilemass.Ithasbeenusedtoassayitemswith235Ucontentsbetween0.1gand1000g.Itcouldbeusedtoassayotherfissileandfissionableisotopes.1.2Thistestmethodrequiresknowledgeoftherelativeisotopiccomposition(SeeTestMethodC1030)ofthespecialnuclearmaterialtodeterminethemassofthedifferentelementsfromthemeasurablequantities.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thetechniquesdescribedinthistestmethodhavebeenappliedtomaterialsotherthanscrapandwaste.Theseotherapplicationsarenotaddressedinthistestmethod.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibil...
