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Specific gravity is a dimensionless quantity that is defined as the ratio of the density of a substance to the density of the water at a specified temperature. The density of water at 4 0C is commonly used as a reference point.
Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material.
specific gravity, ratio of the density of a substance to that of a standard substance. The usual standard of comparison for solids and liquids is water at 4 °C (39.2 °F), which has a density of 1.0 kg per litre (62.4 pounds per cubic foot).
Jan 25, 2020 · Specific gravity, often abbreviated as GE or SG, is a measurement that compares the density of a substance to the density of water at a specific temperature and pressure. In other words, specific gravity tells us how much denser or less dense a material is compared to water.
Specific Gravity (Relative Density) - SG - is a dimensionless unit defined as the ratio of the density of a substance to the density of water - at a specified temperature and can be expressed as. SG = ρ substance / ρ H2O (2)
Specific gravity tells you whether something is floating or sinking in water. A specific gravity below 1 means that the sample is less dense (lighter) than water and will, therefore, float. For example, an oil with a specific gravity of 0.825 will float on water.
Specific gravity is the ratio of the object's density to the density of water, i.e.: \begin{equation} \text { Specific gravity }=\frac{\text { Density of an object }}{\text { Density of water }}\nonumber
