Sikes hydrometer, 1870-1930.
3 0 c m
actual image size: 32cm x 22cm

Sikes hydrometer, 1870-1930.

© Science Museum / Science & Society Picture Library


Gilt customs and excise standard no 1 (Sikes) hydrometer by J J Hicks. Range 0 - 10. Hydrometers are used to measure the relative density of a liquid and are particularly used for establishing the alcoholic content of liquids. A hydrometer will float higher in a heavy liquid, such as one that has a high quantity of sugar. A less heavy liquid, where the sugar has been turned into alcohol, will make the hydrometer float lower. Sikes's hydrometers were covered with a body of fine gold to help prevent corrosion. Hydrometers are still used in wine making today.

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