In centrifugation the clearing factor or k factor represents the relative pelleting efficiency of a given centrifuge rotor at maximum rotation speed. It can be used to estimate the time
The value of the clearing factor depends on the maximum angular velocity
As the rotational speed of a centrifuge is usually specified in RPM, the following formula is often used for convenience:
Centrifuge manufacturers usually specify the minimum, maximum and average radius of a rotor, as well as the
For runs with a rotational speed lower than the maximum rotor-speed, the
The K-factor is related to the sedimentation coefficient
Where
Where