The knowledge about porosity, pore size distribution and pore volume is of fundamental importance for the characterization of porous materials. Mercury porosimetry is the most commonly used method for determining the accessible macro- and mesopore size distribution in solids. The Microtrac MRB’s BELPORE mercury porosimeter series for low-, medium- and high-pressure (LP, MP and HP, respectively) reliably and reproducibly measures pore diameters ranging from 1 mm down to 3.6 nm. Apart from the pore size distribution, this technique can be used to determine sample volume and the apparent and true density of most porous materials, regardless of their type and shape.
