Standard Guide to
Site Characterization for Engineering Design and
This general is issued below the fixed designation d 420; the wide variety at once following the designation indicates the year of
authentic adoption or, inside the case of revision, the yr of last revision. quite a number in parentheses indicates the yr of remaining reapproval. a
superscript epsilon (e) indicates an editorial exchange because the final 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) pdf free