Logo

ASTM D257-07

Historical Revision

Standard Test Methods for DC Resistance or Conductance of Insulating Materials

$91.00

$91.00

$163.80


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


Stay effortlessly up-to-date with the latest standard revisions. When new versions are released, they're automatically charged and delivered to you, ensuring seamless compliance.

Document Preview Not Available...

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 D 4496 to evaluate such materials.

1.3 This standard describes 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 The procedures appear in the following sections:

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.


SDO ASTM: ASTM International
Document Number D257
Publication Date May 15, 2007
Language en - English
Page Count 18
Revision Level 07
Supercedes
Committee D09.12
Publish Date Document Id Type View
April 1, 2014 D0257-14 Revision
May 15, 2007 D0257-07 Revision
Oct. 10, 1999 D0257-99 Revision
Not Available D0257-91 Revision
March 1, 2021 D0257-14R21E01 Reaffirmation
Sept. 1, 2005 D0257-99R05 Reaffirmation