Standard Test Method for
Particle-Size Analysis of Soils1
This widespread is issued below the constant designation d 422; the wide variety right now following the designation indicates the yr of
original adoption or, within the case of revision, the year of closing revision. quite a number in parentheses indicates the yr of last reapproval. a
superscript epsilon (e) indicates a piece of writing exchange since the ultimate revision or reapproval.
click below to download Astm D 422 – 63 (Reapproved 2002) pdf free
click here to download Astm D 421 – 85 (Reapproved 2002) pdf free