ASTM D150

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

1.2 These test methods provide general information on a variety of electrodes, apparatus, and measurement techniques. The reader should also consult ASTM standards or other 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 7.2.6.1 and 10.2.1.

2. Referenced Documents

D1082 Test Methods for Dissipation Factor and Permittivity (Dielectric Constant) of Mica
D1531 Test Method for Relative Permittivity (Dielectric Constant) and Dissipation Factor by Fluid Displacement Procedures
D1711 Terminology Relating to Electrical Insulation
D374 Test Methods for Thickness of Solid Electrical Insulation
D5032 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Glycerin Solutions
D618 Practice for Conditioning Plastics for Testing
E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
E197 Specifications for Enclosures and Servicing Units for Tests Above and Below Room Temperature.

Index Terms

ac loss; capacitance: parallel, series, fringing, stray; conductance; contacting electrodes; dielectric; dielectric constant; dissipation factor; electrical insulating material; electrode; fluid displacement; frequency; fringing capacitance; guarded electrode; Hz; loss angle; loss factor; loss tangent; non-contacting electrodes; permittivity; phase angle; phase defect angle; power factor; Q; quality factor; reactance: parallel, series; relative permittivity; resistance: parallel, series; tan (delta); thickness

Citing ASTM Standards

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