Standard Test Method for
Sonic Shear Stability of Hydraulic Fluids1
This standard is issued under the fixed designation D 5621; 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 Astm D 5621 – 01 pdf free download
click here Astm D 5620 – 94 (Reapproved 1999) pdf free download