Designation:F79−69(Reapproved2015)StandardSpecificationforType101SealingGlass1ThisstandardisissuedunderthefixeddesignationF79;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThisspecificationcoversType101sealingglassforuseinelectronicapplications.NOTE1—Thisspecificationisprimarilyintendedtoconsiderglassasmostgenerallyused,thisis,glassinitstransparentformasnormallyencounteredinfabricatingelectronicdevices.X1.3listssealingmetalsandalloysthatarecompatiblewiththisglass.Type101glassinotherformssuchaspowdered,crushed,sintered,fibrous,etc.areexcluded.Therequirementsofthisspecification,asappliedtotheseforms,mustbeestablishedintherawglasspriortoitsconversion.2.ReferencedDocuments2.1ASTMStandards:2C336TestMethodforAnnealingPointandStrainPointofGlassbyFiberElongationC338TestMethodforSofteningPointofGlassC598TestMethodforAnnealingPointandStrainPointofGlassbyBeamBendingD150TestMethodsforACLossCharacteristicsandPermit-tivity(DielectricConstant)ofSolidElectricalInsulationD257TestMethodsforDCResistanceorConductanceofInsulatingMaterialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE228TestMethodforLinearThermalExpansionofSolidMaterialsWithaPush-RodDilatometerF14PracticeforMakingandTestingReferenceGlass-MetalBead-SealF140PracticeforMakingReferenceGlass-MetalButtSealsandTestingforExpansionCharacteristicsbyPolarimetricMethodsF144PracticeforMakingReferenceGlass-MetalSandwichSealandTestingforExpansionCharacteristicsbyPolari-metricMethods3.OrderingInformation3.1Ordersformaterialunderthisspecificationshallincludethefollowinginformation:3.1.1Form,3.1.2Typeofglass,3.1.3Dimensions,3.1.4Markingandpackaging,and3.1.5Certification(ifrequired).4.ChemicalComposition4.1Thetypicalchemicalcompositionofthisglassisasfollows(Note2):MajorConstitu...
