Designation:C1217−00(Reapproved2012)StandardGuideforDesignofEquipmentforProcessingNuclearandRadioactiveMaterials1ThisstandardisissuedunderthefixeddesignationC1217;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Intent:1.1.1Thisguidecoversequipmentusedinshieldedcellorcanyonfacilitiesfortheprocessingofnuclearandradioactivematerials.Itistheintentofthisguidetosetdowntheconditionsandpracticesthathavebeenfoundnecessarytoensureagainstortominimizethefailuresandoutagesofequipmentusedunderthesubjectcircumstances.1.1.2Itisintendedthatthisguiderecordtheprinciplesandcaveatsthatexperiencehasshowntobeessentialtothedesign,fabrication,andinstallationofequipmentcapableofmeetingthestringentdemandsofoperating,dependablyandsafely,inanuclearprocessingenvironmentthatoperatorscanneitherseenorreachdirectly.1.1.3Thisguidesetsforthgeneralizedcriteriaandguide-linesforthedesign,fabrication,andinstallationofequipmentusedinthisservice.Thisserviceincludestheprocessingofradioactivewastes.Equipmentisplacedbehindradiationshieldwallsandcannotbedirectlyaccessedbytheoperatorsorbymaintenancepersonnelbecauseoftheradiationexposurehazards.Inthetypeofshieldedcellorcanyonfacilityofinteresttousersofthisguide,eitherthebackgroundradiationlevelremainshighatalltimesoritisimpracticaltoremovetheprocesssourcesofradiationtofacilitateinsiturepairsorcarryoutmaintenanceproceduresonequipment.Theequipmentisoperatedremotely,eitherwithorwithoutvisualaccesstotheequipment.1.2Applicability:1.2.1Thisguideisintendedtobeapplicabletoequipmentusedunderoneormoreofthefollowingconditions:1.2.1.1Thematerialshandledorprocessedconstituteasignificantradiationhazardtomanortotheenvironment.1.2.1.2Theequipmentwillgenerallybeusedoveralong-termlifecycle(forexample,inexcessoftwoyears),butequipmentintendedforuseoverashorterlife...
