1、Designation:D11686(Reapproved 2020)Standard Test Methods forVitrified Ceramic Materials for Electrical Applications1This standard is issued under the fixed designation D116;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of
2、last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 These test methods outline procedures
3、for testingsamples of vitrified ceramic materials that are to be used aselectrical insulation.Where specified limits are mentionedherein,they shall not be interpreted as specification limits forcompleted insulators.1.2 These test methods are intended to apply to unglazedspecimens,but they may be equ
4、ally suited for testing glazedspecimens.The report section shall indicate whether glazed orunglazed specimens were tested.1.3 The test methods appear as follows:SectionTest MethodRelatedStandard(s)6Compressive StrengthC77313Dielectric StrengthD618,D1498Elastic PropertiesC62315Electrical ResistivityD
5、618,D257,D18297Flexural StrengthC674,F4179HardnessC730,E185PorosityC37314Relative Permittivity and DissipationFactorD150,D2149,D25204Specific GravityC20,C329,F7710Thermal ConductivityC177,C40812Thermal ExpansionC539,E28811Thermal Shock Resistance1.4 This standard does not purport to address all of t
6、hesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific warning statements are given in 11.3,13.5,and 15.
7、3.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers t
8、o Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C20 Test Methods for Apparent Porosity,Water Absorption,Apparent Specific Gravity,and Bulk Density of BurnedRefractory Brick and Shapes by Boiling WaterC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission P
9、roperties by Means ofthe Guarded-Hot-Plate ApparatusC329 Test Method for Specific Gravity of Fired CeramicWhiteware MaterialsC373 Test Methods for Determination of Water Absorptionand Associated Properties by Vacuum Method for PressedCeramic Tiles and Glass Tiles and Boil Method forExtruded Ceramic
10、Tiles and Non-tile Fired CeramicWhiteware ProductsC408 Test Method for Thermal Conductivity of WhitewareCeramicsC539 Test Method for Linear Thermal Expansion of Porce-lain Enamel and Glaze Frits and Ceramic WhitewareMaterials by Interferometric MethodC623 Test Method for Youngs Modulus,Shear Modulus
11、,and Poissons Ratio for Glass and Glass-Ceramics byResonanceC674 Test Methods for Flexural Properties of CeramicWhiteware MaterialsC730 Test Method for Knoop Indentation Hardness of GlassC773 Test Method for Compressive(Crushing)Strength ofFired Whiteware MaterialsD149 Test Method for Dielectric Bre
12、akdown Voltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD150 Test Methods for AC Loss Characteristics and Permit-tivity(Dielectric Constant)of Solid Electrical InsulationD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD618
13、 Practice for Conditioning Plastics for TestingD638 Test Method for Tensile Properties of Plastics1These test methods are under the jurisdiction of ASTM Committee C21 onCeramic Whitewares and Related Products and is the direct responsibility ofSubcommittee C21.03 on Methods for Whitewares and Enviro
14、nmental Concerns.Current edition approved Nov.1,2020.Published December 2020.Originallyapproved in 1921.Last previous edition approved in 2016 as D116 86(2016).DOI:10.1520/D0116-86R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.or
15、g.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with international
16、ly recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1D1829 Test Method for Electrical Resistance of CeramicMaterials at Elevated Temperatures(Withdrawn 2001)3D2149 Test Method for Permittivity(Dielectric Constant)And Dissipation Factor Of Solid Dielectrics At Frequen-cies To 10 MHz And Temperatures To 500CD2520
