THE Hydrometer Sub-Committee of the British Standards Institution has prepared a draft specification for British standard density hydrometers and tables for use with the hydrometers. The draft ...

Julian J. Palagyi, Broadview Heights A. A hydrometer measures the ratio of the density of a liquid to that of water. In light liquids, such as kerosene or alcohol, the hydrometer will sink deeper ...

Tracking fermentation normally involves a simple yet critical piece of equipment called a hydrometer (shown left), which measures the specific gravity or relative density of a liquid.