Apparent Density of Activated Carbon
Apparent density (aka particle or mercury density) is defined as the mass of the unit volume of the carbon particle, including its pore system. From this value, it is possible to obtain the bed porosity, which is an important value with respect to the flow characteristics of the activated carbon bed. The method uses a pycnometer. If both apparent and real densities are known, the difference of their inverses will provide the total pore volume of the activated carbon.