Specific Gravity
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Definition:
The ratio of the weight of any volume of a substance to the weight of an equal volume of another substance taken as standard at a constant or stated temperature. Solids and liquids are usually compared with water at 4°C. In analytical work when corrections are made for the effects of air buoyancy, the term absolute specific gravity is used. The term apparent specific gravity is used to denote the specific gravity of a porous solid when the volume used in the calculations is considered to exclude the permeable voids. The term bulk specific gravity denotes specific gravity measurements in which volume of a solid includes both the permeable and impermeable voids. See also DENSITY, BULK; BULK DENSITY;
and RELATIVE DENSITY.
Definition Copyright ©1989 CRC Press LLC. All rights
reserved.
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