Relative Density

Written by Jerry Ratzlaff. Posted in Dimensionless Numbers

densityRelative density is the density or ratio of any substance to another substance.  It sometimes may be called just gravity or specific gravity. 

FORMULA

\(RD = \frac{\rho_s}{\rho_r}\) 

Where:

\(RD\) = relative density

\(\rho_s\) (Greek symbol rho) = substance density

\(\rho_r\) (Greek symbol rho) = reference density