Standard Test Methods for
DC Resistance or Conductance of Insulating Materials1
This general is issued beneath the constant designation d 257; the variety right now following the designation indicates the year of
original adoption or, in the case of revision, the yr of ultimate revision. a range of in parentheses indicates the year of ultimate reapproval. a
superscript epsilon (e) suggests a piece of writing trade since the ultimate revision or reapproval.
This standard has been approved for use by using organizations of the department of defense.
click below to download Astm D 257 – 99 pdf free
click here to download Astm D 256 – 04 pdf free
