sedimentation velocity, v B

Velocity of a component in a fluid relative to the fluid in the direction of gravitational or centrifugal acceleration. Also called sedimentation rate.
PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 992
PAC, 1994, 66, 897 (Quantities and units for centrifugation in the clinical laboratory (IUPAC Recommendations 1994)) on page 904