lDesignation:D3293-91a(Reapproved1996)StandardSpecificationforPTFEResinMoldedSheet1ThisstandardisissuedunderthefixeddesignationD3293;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(•)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.ConsulttheiJoDIndexofSpecificationsandStandardsforthespecificyearofissuewhichhasbeenadoptedbytheDepartmentofDefense.t.Scopel.lThisspecificationcoversmoldedsheetinminimumthicknessesof0.794mm(1/32in.)manufacturedfromPTFEresinmoldingmaterials.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3Thefollowinghazardcaveatpertainsonlytothetestmethodportion,Section7,ofthisspecification:T'hisstan-darddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimi-tationspriortouse.2.ReferencedDocuments2.lASTMStandards:D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectrical·InsulatingMate-rialsatCommercialPower-Frequencies:ZD618PracticeforConditioningPlasticsandElectricalInsulatingMaterialsforTesting3D638TestMethodforTensilePropertiesofPlastics3D792TestMethodsforSpecifi~Gravity(Relati.veDen-sity)andDensityofPlasticsbyDisplacemeht3D1457Specificationfor·PTFEMoldingandExtrusionMaterials3·D1505Test·MethodforDensityafPlasticsbytheDensity-GradientTechnique3D1708TestMethodforTensilePropertiesofPlasticsbyUseofMicrotensileSpecimens3·•D1898PracticeforSamplingofPlastics3D3892PracticeforPackaging/PackingofPlastics4E691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod52.2MilitaryStandard:MIL-STD-105DSamplingProcedures"andTablesforInspectionbyAttributes61Thisspecificationisunderthejuris...
