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A Note Regarding the Speeds of Babcock Centrifuges

Cornell University, Ithaca, New York

ABSTRACT

The table of speeds of Babcock centrifuges in common use gives equal forces at the bottom of the cup, not in the bottle where the sample is placed. A new table has been calculated to produce equal forces at the fat-acid interface during the first centrifuging period. It is recommended that the use of small diameter centrifuges be discontinued because the force acting to remove water emulsified in the fat column is very small in the small machines.