Babcock test

[ bab-kok ]
/ ˈbæbˌkɒk /

noun

a test for determining the butterfat content of milk and milk products, conducted by adding sulfuric acid to a sample and then centrifuging it in a flask with a calibrated neck in which the liquefied fat collects.

Origin of Babcock test

named after Stephen M. Babcock (1843–1931), U.S. agricultural chemist