Designation:C1750−17StandardGuideforDevelopment,Verification,Validation,andDocumentationofSimulatedHigh-LevelTankWaste1ThisstandardisissuedunderthefixeddesignationC1750;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Intent:1.1.1Theintentofthisguidelineistoprovidegeneralconsiderationsforthedevelopment,verification,validation,anddocumentationofhigh-levelwaste(HLW)tanksimulants.Duetotheexpenseandhazardsassociatedwithobtainingandworkingwithactualwastes,especiallyradioactivewastes,simulantsareusedinawidevarietyofapplicationsincludingprocessandequipmentdevelopmentandtesting,equipmentacceptancetesting,andplantcommissioning.Thisstandardguidefacilitatesaconsistentmethodologyfordevelopment,preparation,verification,validation,anddocumentationofwastesimulants.1.2Thisguidelineprovidesdirectionon(1)definingsimu-lantuse,(2)definingsimulant-designrequirements,(3)devel-opingasimulantpreparationprocedure,(4)verifyingandvalidatingthatthesimulantmeetsdesignrequirements,and(5)documentingsimulant-developmentactivitiesandsimulantpreparationprocedures.1.3Applicability:1.3.1ThisguideisintendedforpersonsandorganizationstaskedwithdevelopingHLWsimulantstomimiccertaincharacteristicsandpropertiesofactualwastes.Theprocessforsimulantdevelopment,verification,validation,anddocumen-tationisshownschematicallyinFig.1.Specificapprovalrequirementsforthesimulantsdevelopedunderthisguidelinearenotprovided.Thistopicislefttotheperformingorgani-zation.1.3.2WhilethisguideisdirectedatHLWsimulants,muchoftheguidancemayalsobeapplicabletootheraqueousbasedsolutionsandslurries.1.3.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4UserCaveats:1.4.1Thisguidelineisnotasubstituteforsoundchemistryandchemicalengineeringskills,provenpracticesandexper...