ASTM-D257 Historical Revision Information
Standard Test Methods for DC Resistance or Conductance of Insulating Materials

ASTM-D257 - 1999 R05 EDITION - SUPERSEDED
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Standard Test Methods for DC Resistance or Conductance of Insulating Materials
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Scope

1.1 These test methods cover direct-current procedures for the determination of dc insulation resistance, volume resistance, volume resistivity, surface resistance, and surface resistivity of electrical insulating materials, or the corresponding conductances and conductivities.

1.2 These test methods are not suitable for use in measuring the electrical resistivity/conductivity of moderately conductive materials. Use Test Method D 4496 to evaluate such materials.

1.3 The test methods and procedures appear in the following sections:

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. For a specific hazard statement, see .

Keywords

DC resistance; insulation resistance; surface resistance; surface resistivity; voulume resistance; volume resistivity; ICS Number Code 29.035.01 (Insulating materials in general)

To find similar documents by ASTM Volume:

10.01 (Electrical Insulation (I): D69 - D2484)

To find similar documents by classification:

29.035.01 (Insulating materials in general)

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Document Number

ASTM-D257-99(2005)

Revision Level

1999 R05 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

Oct. 1, 2005

Document Type

Test Method

Page Count

18 pages

Committee Number

D09.12