Designation:D8318−20StandardSpecificationforLow-DensityPoly(VinylideneFluoride)BasedMaterialIntendedforUseinWireandCableJacketing1ThisstandardisissuedunderthefixeddesignationD8318;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversalow-densitymaterialbasedonpoly(vinylidenefluoride)(PVDF),intendedforuseasjacketingmaterialforwireandcable.1.1.1Thematerialhasaclosedcellfoamstructure.1.2Thejacketingmaterialcoveredinthisspecificationisintendedforuseinwiresandcablesinpower-limitedapplications,suchasopticalfibercables,communicationscables,coaxialcables,orpowerlimitedfirealarmcables.Thematerialisnotintendedforuseinpowercables.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesaremathematicalconversionstoinch-poundunitsthatareprovidedforinforma-tiononlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD150TestMethodsforACLossCharacteristicsandPermit-tivity(DielectricConstant)ofSolidElectricalInsulationD638TestMethodforTensilePropertiesofPlasticsD790TestMethodsforFlexuralPropertiesofUnreinforcedandReinforcedPlasticsandElectricalInsulati...
