Designation:D2518–99AnAmericanNationalStandardStandardSpecificationforWovenGlassFabricsforElectricalInsulation1ThisstandardisissuedunderthefixeddesignationD2518;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationappliestostraight-cut(asopposedtobias-cut)plainweavegreige(unfinished)glassfabricproducedfromcontinuous-filamentyarnsandsuitableforuseintheproductionofcoatedortreatedfabricforelectricalinsulatingpurposes.1.2Excludedfromthisspecificationarewovenglassfabrictapesandfabricsintendedforuseprimarilyinlaminatedconstructions.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.2.ReferencedDocuments2.1ASTMStandards:D123TerminologyRelatingtoTextiles2D578SpecificationforGlassFiberStrands2D1711TerminologyRelatingtoElectricalInsulation3D1777TestMethodforThicknessofTextileMaterials2D1931SpecificationforFullyCuredSiliconeRubber-CoatedGlassFabricandTapesforElectricalInsulation3D3636PracticeforSamplingandJudgingQualityofSolidElectricalInsulatingMaterials4D3773TestMethodsforLengthofWovenFabrics4D3774TestMethodsforWidthofWovenFabrics4D3775TestMethodforFabricCountofWovenFabric4D3776TestMethodsforMassperUnitArea(Weight)ofFabric4D4029SpecificationforFinishedWovenGlassFabrics4D4963TestMethodforIgnitionLossofGlassStrandsandFabrics4D5035TestMethodforBreakingStrengthandElongationofTextileFabrics(StripMethod)43.Terminology3.1Definitions:3.1.1DefinitionsemployedhereinareasindicatedinTer-minologyD123,exceptasfurtherdefinedherein.3.1.2FordefinitionsoftermsrelatingtoelectricalinsulationrefertoTerminologyD1711.4.OrderingInformation4.1Ordersformaterialcoveredbythisspecificationshallincludethewidthandlengthofeachrollordered.5.MaterialsandManufacture5.1ConstructionandMechanicalProperties—Thefabricsshallmeet...
