Designation:E1292−94(Reapproved2011)StandardSpecificationforGravityConvectionandForcedVentilationIncubators1ThisstandardisissuedunderthefixeddesignationE1292;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstheperformancerequirementsforgeneralpurposeairincubatorsordinarilyusedforincubat-ingprocedures,whichhaveanincubatingchamberupto0.6m3(25ft3)involume.Itisapplicabletogravityandforcedventilationincubatorsdesignedtooperateoverallorpartofthetemperaturerangefrom5°Caboveambientto75°C.1.2Thisspecificationdoesnotincludeanyrequirementsforthesafehandlingofharmfulordiseasebearingorganisms.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodportions,Sections4,5,and6,ofthisspecification.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.Types2.1Thisspecificationcoversthefollowingfourtypesofairincubators:2.1.1Type1A—Anincubatorventilatedbygravityconvec-tionhavingauniformityoftemperaturewithin3%ofthedifferentialbetweenincubatorandambienttemperature,2.1.2Type1B—Anincubatorventilatedbygravityconvec-tionhavingauniformityoftemperaturewithin6%ofthedifferentialbetweenincubatorandambienttemperature,2.1.3Type2A—Anincubatorventilatedbyforcedventila-tionhavingauniformityoftemperaturewithin2%ofthedifferentialbetweenincubatorandambienttemperature,2.1.4Type2B—Anincubatorventilatedbyforcedventila-tionhavingauniformityoftemperaturewithin5%ofthedifferentialbetweenincubatorandambienttemperature.3.PerformanceRequirements3.1Thetemperaturewithintheincubatingchambershallbecontrolledbyanautomaticdevice,andshallbeuniformwithinthetolerancesgiveninTable1,whenteste...
