ASTM-D257 › Historical Revision Information
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.
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Superseded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