ASTM D116 - 86(2016)

    Standard Test Methods for Vitrified Ceramic Materials for Electrical Applications

    Active Standard ASTM D116 | Developed by Subcommittee: C21.03

    Book of Standards Volume: 15.02

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    Significance and Use

    3.1 For any given ceramic composition, one or more of the properties covered herein may be of more importance for a given insulating application than the other properties. Thus, it may be appropriate that selected properties be specified for testing these ceramic materials.

    3.2 Pertinent statements of the significance of individual properties may be found in the sections pertaining to such properties.

    1. Scope

    1.1 These test methods outline procedures for testing samples of vitrified ceramic materials that are to be used as electrical insulation. Where specified limits are mentioned herein, they shall not be interpreted as specification limits for completed insulators.

    1.2 These test methods are intended to apply to unglazed specimens, but they may be equally suited for testing glazed specimens. The report section shall indicate whether glazed or unglazed specimens were tested.

    1.3 The test methods appear as follows:







    Compressive strength



    Dielectric strength


    D618, D149

    Elastic properties



    Electrical resistivity


    D618, D257, D1829

    Flexural strength


    C674, F417



    C730, E18




    Relative permittivity and dissipation factor


    D150, D2149, D2520

    Specific gravity


    C20, C329, F77

    Thermal conductivity


    C177, C408

    Thermal expansion


    C539, E288

    Thermal shock resistance



    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precaution statements are given in 11.3, 13.5, and 15.3.

    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C20 Test Methods for Apparent Porosity, Water Absorption, Apparent Specific Gravity, and Bulk Density of Burned Refractory Brick and Shapes by Boiling Water

    C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus

    C329 Test Method for Specific Gravity of Fired Ceramic Whiteware Materials

    C373 Test Method for Water Absorption, Bulk Density, Apparent Porosity, and Apparent Specific Gravity of Fired Whiteware Products, Ceramic Tiles, and Glass Tiles

    C408 Test Method for Thermal Conductivity of Whiteware Ceramics

    C539 Test Method for Linear Thermal Expansion of Porcelain Enamel and Glaze Frits and Ceramic Whiteware Materials by Interferometric Method

    C623 Test Method for Youngs Modulus, Shear Modulus, and Poissons Ratio for Glass and Glass-Ceramics by Resonance

    C674 Test Methods for Flexural Properties of Ceramic Whiteware Materials

    C730 Test Method for Knoop Indentation Hardness of Glass

    C773 Test Method for Compressive (Crushing) Strength of Fired Whiteware Materials

    D149 Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies

    D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

    D257 Test Methods for DC Resistance or Conductance of Insulating Materials

    D618 Practice for Conditioning Plastics for Testing

    D638 Test Method for Tensile Properties of Plastics

    D1829 Test Method for Electrical Resistance of Ceramic Materials at Elevated Temperatures

    D2149 Test Method for Permittivity (Dielectric Constant) And Dissipation Factor Of Solid Dielectrics At Frequencies To 10 MHz And Temperatures To 500C

    D2520 Test Methods for Complex Permittivity (Dielectric Constant) of Solid Electrical Insulating Materials at Microwave Frequencies and Temperatures to 1650C

    E18 Test Methods for Rockwell Hardness of Metallic Materials

    E288 Specification for Laboratory Glass Volumetric Flasks

    F77 Test Method for Apparent Density of Ceramics for Electron Device and Semiconductor Application

    F417 Test Method for Flexural Strength (Modulus of Rupture) of Electronic-Grade Ceramics

    ICS Code

    ICS Number Code 81.040.30 (Glass products); 81.060.01 (Ceramics in general)

    UNSPSC Code

    UNSPSC Code 39121721(Electrical insulators)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D0116-86R16

    Citation Format

    ASTM D116-86(2016), Standard Test Methods for Vitrified Ceramic Materials for Electrical Applications, ASTM International, West Conshohocken, PA, 2016,

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