ISO/ASTM52116:2013AnAmericanNationalStandardStandardPracticeforDosimetryforaSelf-ContainedDry-StorageGammaIrradiator1ThisstandardisissuedunderthefixeddesignationISO/ASTM52116;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.1.Scope1.1Thispracticeoutlinesdosimetricprocedurestobefol-lowedwithself-containeddry-storagegammairradiators.Forirradiatorsusedforroutineprocessing,proceduresaregiventoensurethatproductprocessedwillreceiveabsorbeddoseswithinprescribedlimits.1.2Thispracticecoversdosimetryintheuseofdry-storagegammairradiators,namelyself-containeddry-storage137Csor60Coirradiators(shieldedfreestandingirradiators).Itdoesnotcoverunderwaterpoolsources,panoramicgammasources,nordoesitcoverself-containedbremsstrahlungX-rayunits.1.3Theabsorbed-doserangefortheuseofthedry-storageself-containedgammairradiatorscoveredbythispracticeistypically1to105Gy,dependingontheapplication.Theabsorbed-doseraterangetypicallyisfrom10–2to103Gy/min.1.4Forirradiatorssuppliedforspecificapplications,spe-cificISO/ASTMorASTMpracticesandguidesprovidedosimetricproceduresfortheapplication.Forproceduresspecifictodosimetryinbloodirradiation,seeISO/ASTMPractice51939.Forproceduresspecifictodosimetryinradia-tionresearchonfoodandagriculturalproducts,seeISO/ASTMPractice51900.Forproceduresspecifictoradiationhardnesstesting,seeASTMPracticeE1249.Forproceduresspecifictothedosimetryintheirradiationofinsectsforsterilereleaseprograms,seeISO/ASTMGuide51940.InthosecasescoveredbyISO/ASTM51939,51900,51940,orASTME1249,thosestandardstakeprecedence.1.5Thisdocumentisoneofasetofstandardsthatprovidesrecommendationsforproperlyimplementingandutilizingdosimetryinradiationprocessing.ItisintendedtobereadinconjunctionwithASTME2628,“PracticeforDosimetryinRadiationProcessing”.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandde...
