Designation:D2305−18StandardTestMethodsforPolymericFilmsUsedforElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD2305;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thesetestmethodscoverthetestingofhomogeneousorganicpolymerfilmsnotover2.4mm(95mils)thickthataretobeusedforelectricalinsulation.1.2Thesetestmethodsarenotnecessarilyapplicabletotestingfilmsincombinationswithacoating,anotherfilm,orwithothertypesofsubstrate,suchasfabricsorpapers.1.3ThevaluesstatedinSIunitsarethestandard.Thevaluesinparenthesesareprovidedforinformationonly.1.4Theproceduresappearinthefollowingsections:ProcedureSectionsConditioning6and7DielectricBreakdownVoltage&DielectricStrength21to26Extractables65to70Heat-SealStrength59to64PermittivityandDissipationFactor42to47ResistanceMethodforMeasuringtheTendencytoCorrodeMetals38to41Sampling5Shrinkage48to53StrainRelief13to20SurfaceResistivity27to31TensileProperties12Thickness8to11VolumeResistivity32to37WaterAbsorption53to581.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.NOTE1—ThesetestmethodsaresimilartoIEC60674–2.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD150TestMethodsforACLossCharacteristicsandPermit-tivity(...
