**What is RCF / G-force**

The relative centrifugal acceleration (RCF) is a parameter describing the effective centrifugal acceleration in a centrifuge. It depends on the rotational speed and the radius and is given in units of the acceleration due to gravity. The RCF enables the separation of cells or particles in a centrifuge and is used to determine optimal conditions for sedimentation.

**What is RPM**

Revolutions per minute (RPM) are a unit of measurement for the rotational speed of a centrifuge. They indicate how many complete revolutions the centrifuge makes in one minute. The speed varies from a few hundred to tens of thousands of rpm, depending on the model and application. The choice of speed depends on the type of material to be centrifuged and should follow the manufacturer’s recommendations or protocol.