For a given substance, A, its mass fraction (x A) is defined as the ratio of its mass (m A) to the total mass (m total) in which it is present, where the sum of all mass fractions is equal to 1. This provides a means to express concentration in a dimensionless size.
- SBO:0000540 fraction of an entity pool (is a)
Date of creation: 20 October 2009, 13:48
Date of last modification: 18 January 2011, 13:25