RCF (Relative Centrifugal Force) is the force exerted on a sample in a centrifuge, relative to the force of gravity. RPM (Revolutions Per Minute) is the number of turns in one minute.
The formula to convert RCF to RPM is:
\[ \text{RPM} = \sqrt{\frac{\text{RCF}}{\text{radius} \times 1.118}} \times 1000 \]
Consider a centrifuge with an RCF of 5000 g and a radius of 10 cm:
Using the formula:
\[ \text{RPM} = \sqrt{\frac{5000}{10 \times 1.118}} \times 1000 \approx 2113.49 \text{ rpm} \]
This means the RPM is approximately 2113.49.