Baumé hydrometer
Quick Summary
The Baumé hydrometer is a measurement device used to determine the specific gravity of liquids. Named after French chemist Antoine Baumé, it features two evenly spaced scales: one for liquids heavier than water and another for liquids lighter than water.12
A hydrometer generally consists of a weighted, sealed glass bulb with a long neck. When immersed in a liquid, the depth to which it floats indicates the liquid's density or specific gravity. The neck of the Baumé hydrometer is calibrated to read degrees on its specific scales, which relate to the liquid's specific gravity. This tool is useful for various applications, such as measuring the concentration of alcohol or sugar solutions.12
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