These test methods provide techniques for the determination of the relative permittivity and the dissipation factor of solid insulating materials by fluid displacement.
Formerly under the jurisdiction of Committee D09 on Electrical and Electronic Insulating Materials, this test method was withdrawn in November 2012. This standard is being withdrawn without replacement because there is no current technical expert within the Subcommittee who is willing to technically and editorially review or update this methodology, or both. This method will continue to be retained as an historical document that may be accessed and referenced. This document may be reinstated at any time in the future with the provision that the document is technically and editorial review and updated.
1.1 These test methods provide techniques for the determination of the relative (Note 1) permittivity and the dissipation factor of solid insulating materials by fluid (Note 2) displacement.
Note 1—In common usage, the word "relative" is frequently dropped.
Note 2—The word "fluid" is a commonly used synonym for "liquid" and yet a gas is also a fluid. In this standard, the word "fluid" is used to show that liquid is not all that is meant.
1.2 Test Method A is especially suited to the precise measurements on polyethylene sheeting at 23°C and at frequencies between 1 kHz and 1 MHz. It may also be used at other frequencies and temperatures to make measurements on other materials in sheet form.
1.3 Test Method B is limited to the frequency range of available guarded bridges. It is especially suited to measurements on very thin films since it does not require determination of the thickness of the specimen yet it provides an estimate of the thickness of thin films that is more accurate and precise than thickness measurements obtained by other means.
1.4 Test Method B is also useful for measurements of polymer sheeting up to 2-mm thickness.
1.5 These test methods permit calculation of the dissipation factor of the specimens tested.
1.6 The values stated in SI units are to be regarded as the standard.
1.7 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 a specific precautionary statement, see 7.2.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D150 Test Methods for AC Loss Characteristics and Permittivity (Dielectric Constant) of Solid Electrical Insulation
D374 Test Methods for Thickness of Solid Electrical Insulation
D831 Test Method for Gas Content of Cable and Capacitor Oils
D924 Test Method for Dissipation Factor (or Power Factor) and Relative Permittivity (Dielectric Constant) of Electrical Insulating Liquids
D1711 Terminology Relating to Electrical Insulation
D6054 Practice for Conditioning Electrical Insulating Materials for Testing
E1 Specification for ASTM Liquid-in-Glass Thermometers
dielectric constant; dissipation factor; fluid displacement (single fluid); fluid displacement (two fluid); immersion method; permittivity;
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Citing ASTM Standards
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