ASTM D 422 AASHTO T 88, BS 1377-2.
Used for grain size analysis of soils where more than 10% of the
material will pass through 75 microns B.S. sieve. Manufactured from
clear transparent glass having uniform clarity throughout the upper
end on which density scale is engraved. The scale range is 0.995 to
1.030 0 density (gms./cc) at 27oC smallest division on the scale is
0.0005.