Standard Guide for
Using the Direct Current Resistivity Method for Subsurface
Investigation1
This standard is issued under the fixed designation D 6431; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
Click below to download Astm D 6431 – 99 Pdf free
[wpdm_package id=’32094′]
Click here to Astm D 6430 – 99 Pdf free download