Designation:D2305−10StandardTestMethodsforPolymericFilmsUsedforElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD2305;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthetestingofhomogeneousorganicpolymerfilmsnotover2.4mm(95mils)thickthataretobeusedforelectricalinsulation.1.2Thesetestmethodsarenotnecessarilyapplicabletotestingfilmsincombinationswithacoating,anotherfilm,orwithothertypesofsubstrate,suchasfabricsorpapers.1.3ThevaluesstatedinSIunitsarethestandard.Thevaluesinparenthesesareprovidedforinformationonly.1.4Theproceduresappearinthefollowingsections:ProcedureSectionsConditioning5and6DielectricBreakdownVoltage&DielectricStrength20to25Extractables64to69Heat-SealStrength58to63PermittivityandDissipationFactor41to46ResistanceMethodforMeasuringtheTendencytoCorrodeMetals37to40Sampling4Shrinkage47to52StrainRelief12to19SurfaceResistivity26to30TensileProperties11Thickness7to10VolumeResistivity31to36WaterAbsorption52to571.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecificwarningstatementsee23.1.NOTE1—ThesetestmethodsaresimilartoIEC60674–2.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD150TestMethodsforACLossCharacteristicsandPermit-tivity(DielectricConstant)ofSolidElectricalInsulationD257TestMethodsforDCResistanceorConductanceofInsulatingMaterialsD374TestMethodsforThicknessofSolidElectricalInsu-lation(Withdrawn2013)3D570TestMethodforWaterAbsorptionofPlasticsD882TestMethodforTensilePropertiesofThinPl...