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ASTM International - ASTM D257-91

Standard Test Methods for D-C Resistance or Conductance of Insulating Materials

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Organization: ASTM International
Publication Date: 1 January 1991
Status: inactive
Page Count: 16

Document History

March 1, 2021
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
5.1 Insulating materials are used to isolate components of an electrical system from each other and from ground, as well as to provide mechanical support for the components. For this purpose, it is...
April 1, 2014
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
5.1 Insulating materials are used to isolate components of an electrical system from each other and from ground, as well as to provide mechanical support for the components. For this purpose, it is...
May 15, 2007
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
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...
September 1, 2005
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
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...
October 10, 1999
Standard Test Methods for DC Resistance or Conductance of Insulating Materials
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...
ASTM D257-91
January 1, 1991
Standard Test Methods for D-C Resistance or Conductance of Insulating Materials
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