ISO/ASTM51539:2005(Reapproved2013)(E)StandardGuideforUseofRadiation-SensitiveIndicators1ThisstandardisissuedunderthefixeddesignationISO/ASTM51539;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.1.Scope1.1Thisguidecoversproceduresforusingradiation-sensitiveindicators(referredtohereafterasindicators)inradiationprocessing.Theseindicatorsmaybelabels,papers,inksorpackagingmaterialswhichundergoavisualchangewhenexposedtoionizingradiation(1-5).21.2Thepurposeforusingindicatorsistodeterminevisuallywhetherornotaproducthasbeenirradiated,ratherthantomeasuredifferentdoselevels.1.3Indicatorsarenotdosimetersandshallnotbeusedasasubstituteforproperdosimetry.InformationaboutdosimetrysystemsforradiationprocessingisprovidedinotherASTMandISO/ASTMdocuments(seeISO/ASTMGuide51261).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.Referenceddocuments2.1ASTMStandards:3E170TerminologyRelatingtoRadiationMeasurementsandDosimetry2.2ISO/ASTMStandards:351204PracticeforDosimetryinGammaIrradiationFacili-tiesforFoodProcessing51261PracticeforCalibrationofRoutineDosimetrySys-temsforRadiationProcessing51431PracticeforDosimetryinElectronBeamandX-ray(Bremsstrahlung)IrradiationFacilitiesforFoodProcess-ing51608PracticeforDosimetryinanX-ray(Bremsstrahlung)FacilityforRadiationProcessing51649PracticeforDosimetryinanElectronBeamFacilityforRadiationProcessingatEnergiesbetween300keVand25MeV51702PracticeforDosimetryinGammaFacilityforRadia-tionProcessing51939PracticeforBloodIrradiationDosimetry51940GuideforDosimetryforSterileInsectReleasePro-grams2.3InternationalCommissiononRadiationUnitsandMea-surements(ICRU)Reports:4ICRUReport85FundamentalQuantitiesandUnitsforIonizingRadiation3.Terminology3.1Definitions:3.1.1dosimetrysystem—systemusedfordeterminin...
