Designation:D150−22StandardTestMethodsforACLossCharacteristicsandPermittivity(DielectricConstant)ofSolidElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD150;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thesetestmethodscoverthedeterminationofrelativepermittivity,dissipationfactor,lossindex,powerfactor,phaseangle,andlossangleofspecimensofsolidelectricalinsulatingmaterialswhenthestandardsusedarelumpedimpedances.Thefrequencyrangeaddressedextendsfromlessthan1Hztoseveralhundredmegahertz.NOTE1—Incommonusage,thewordrelativeisfrequentlydropped.1.2Thesetestmethodsprovidegeneralinformationonavarietyofelectrodes,apparatus,andmeasurementtechniques.AreaderinterestedinissuesassociatedwithaspecificmaterialneedstoconsultASTMstandardsorotherdocumentsdirectlyapplicabletothematerialtobetested.2,31.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see10.2.1.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:4D374TestMethodsforThicknessofSolidElectricalInsu-lation(Metric)D0374_D0374MD618PracticeforConditioningPlasticsforTestingD1531TestMethodsforRelativePermittivity(DielectricConstant)andDissipationFactorbyFluidDisplacementProcedures(Withdrawn2012)5D1711TerminologyRelatingtoElectri...
