Specific gravity is defined as the ratio of the weight density of a fluid to the weight density of a standard fluid.
For liquid standard fluid is taken as water and for gas is air.
Specific gravity is also called relative density.
Specific gravity is a dimensionless quantity.
It denoted by S.
For liquid standard fluid is taken as water and for gas is air.
Specific gravity is also called relative density.
Specific gravity is a dimensionless quantity.
It denoted by S.
S ( for liquid ) = Weight density of liquid / Weight density of water
S ( for gases ) = Weight density of gas / Weight density of air