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ASTM D257 - 14(2021)e1
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
| Fecha edición: |
2021-03-01
En Vigor
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|---|---|
| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | DC resistance; insulation resistance; surface resistance; surface resistivity; volume resistance; volume resistivity ; |
| Scope: | 1.1 These test methods cover direct-current procedures for the measurement of dc insulation resistance, volume resistance, and surface resistance. From such measurements and the geometric dimensions of specimen and electrodes, both volume and surface resistivity of electrical insulating materials can be calculated, as well as the corresponding conductances and conductivities. 1.2 These test methods are not suitable for use in measuring the electrical resistance/conductance of moderately conductive materials. Use Test Method D4496 to evaluate such materials. 1.3 These test methods describe several general alternative methodologies for measuring resistance (or conductance). Specific materials can be tested most appropriately by using standard ASTM test methods applicable to the specific material that define both voltage stress limits and finite electrification times as well as specimen configuration and electrode geometry. These individual specific test methodologies would be better able to define the precision and bias for the determination. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 29.035.01 - Materiales aislantes eléctricos en general |
| CTN: | D09.12 - D09.12 |
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Otras Relaciones |
Es referenciada por D4325-20 Es referenciada por D4976-12AR20 Es referenciada por D2633-21 Es referenciada por D3032-21A Es referenciada por D0229-19E01 Es referenciada por D7201-06R20 Es referenciada por D0876-21 Es referenciada por D1039-16R22 Es referenciada por F3510-21 Es referenciada por D2671-21 Es referenciada por D0470-21 Es referenciada por D2413-16R22 Es referenciada por D4731-13R20 Es referenciada por D2305-18 Es referenciada por G0021-15R21E01 Es referenciada por D1304-99R20E01 Es referenciada por D4732-13R20 Es referenciada por D4969-17R22 Es referenciada por D4872-14R20 Es referenciada por D2287-19 |










