Contact Angle
10. March 2025Grain
10. March 2025Concentration
The mass of one phase in a unit volume of a mixture.
There are several ways of expressing a concentration:
- Mass fraction (mass of solids to total mass)
- Mass ratio (mass of solids to mass of liquid)
- Voids ratio (volume of voids to volume of solids)
- Volume fraction (volume of solids to total volume)
- Volume ratio (volume of solids to volume of liquid)
Units like ppm, ppb should be avoided due to ambiguity.