Relative Density

Written by Jerry Ratzlaff on . Posted in Dimensionless Numbers

density

Relative Density

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

Relative Density FORMULA

\( relative \; density  \;=\;   \frac {  substance \; density }{ reference \; density }\)

\(RD = \frac{\rho_s}{\rho_r}\) 

Where:

\(RD\) = relative density

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

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

 

Tags: Equations for Gravity Equations for Density