ASTM D150-98

    Historical Standard: ASTM D150-98 Standard Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation

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    ASTM D150

    1. Scope

    1.1 These test methods cover the determination of relative permittivity, dissipation factor, loss index, power factor, phase angle, and loss angle of specimens of solid electrical insulating materials when the standards used are lumped impedances. The frequency range that can be covered extends from less than 1 Hz to several hundred megahertz.

    Note 1-In common usage, the word relative is frequently dropped.

    1.2 Since some materials require special treatment, the reader may also wish to consult other ASTM standards or documents directly applicable to the material to be tested.

    1.3 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. For specific hazard statements, see 6.2.6.1 and 9.2.1.


    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

    D374 Test Methods for Thickness of Solid Electrical Insulation

    D618 Practice for Conditioning Plastics for Testing

    D1082 Test Method for Dissipation Factor and Permittivity (Dielectric Constant) of Mica

    D1531 Test Methods for Relative Permittivity (Dielectric Constant) and Dissipation Factor by Fluid Displacement Procedures

    D1711 Terminology Relating to Electrical Insulation

    D5032 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions

    E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

    E197 Specification for Enclosures and Servicing Units for Tests Above and Below Room Temperature


    ICS Code

    ICS Number Code 29.035.01 (Insulating materials in general)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D0150-98

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