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Specific gravity tables are used to determine the specific gravity, or relative density, of a substance, which is the ratio of the density of that substance to that of a known substance, usually water. Water is known to ... More »

The specific gravity table published by the American Petroleum Institute (API) is a tool for determining the relative density of various types of oil. While it has no units of measurement, an oil's rating is expressed as... More »

Normal urine specific gravity levels are between 1.000 and 1.030. Medscape defines the specific gravity of urine as the measure of urine density ratio compared to water density. More »

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Specific gravity, also known as relative density, is the ratio of the weight of a substance to the weight of an equal volume of water at a temperature of 4 degrees Celsius. The weight value in the equation can be substit... More »

Specific gravity, also known as the relative density, is calculated by dividing the density of a substance by a reference density. The most common reference density is pure water, making one common definition of specific... More »

Density is the mass per unit volume of a material, while specific gravity is the density of a material divided by the density of water. Multiplying the specific gravity by the density of water gives the density of a mate... More »

While specific gravity is often based on the density of water, it is not a measure of water density itself. Specific gravity is simply the ratio between the densities of two different substances. More »