Designation:C788−03(Reapproved2015)StandardSpecificationforNuclear-GradeUranylNitrateSolutionorCrystals1ThisstandardisissuedunderthefixeddesignationC788;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationappliestonuclear-gradeaqueousuranylnitratesolutionorcrystalsnotexceeding5%235UintendedforsubsequentmanufactureintoeitherUF6(forfeedtoanenrichmentplant)ordirectconversiontouraniumoxide(foruseinreactors).1.2Thisspecificationisintendedtoprovidethenuclearindustrywithageneralstandardforaqueousuranylnitratesolutionorcrystals.Itrecognizesthediversityofmanufactur-ingmethodsandtheprocessestowhichitissubsequentlytobesubjected.Itisthereforeanticipatedthatitmaybenecessarytoincludesupplementaryspecificationlimitsbyagreementbe-tweenpurchaserandmanufacturer.Differentlimitsareappro-priatedependingonwhetherornottheuranylnitrateistobeconvertedtoUF6forsubsequentprocessing.1.3Thepurposeofthisspecificationis:(a)todefinetheimpurityanduraniumisotopelimitsforcommercialstandarduranylnitrate,and(b)todefineadditionallimitsforrepro-cesseduranylnitrate(oranymixtureofreprocessedandcommercialstandarduranylnitrate).Forsuchuranylnitrates,specialprovisionsmayneedtobemadetoensurethatnoextrahazardarisestotheemployees,theprocessequipment,ortheenvironment.1.4Thescopeofthisspecificationdoesnotcomprehen-sivelycoverallprovisionsforpreventingcriticalityaccidents,forhealthandsafety,orforshipping.Observanceofthisstandarddoesnotrelievetheuseroftheobligationtoconformtoallinternational,federal,stateandlocalregulationsforprocessing,shipping,oranyotherwayofusingtheuranylnitrate.AnexampleofaU.S.GovernmentDocumentistheCodeofFederalRegulations,Title10,Part50(latestedition).1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisst...
