Standard Guide to
Site Characterization for Engineering Design and
This standard is issued under the fixed designation D 420; 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 420 – 98 (Reapproved 2003) pdf free
Click here to download Astm D 413 – 98 (Reapproved 2002)E1 Pdf Free Download