The polymer and plastics field is large and heterogeneous, depending on the applications material characterizations and control may require the measurement of molecular weight and branching of polymers, the measurement of particle size and morphology of raw materials, the use of rotational or capillary rheology for process simulation such as extrusion and molding of plastic materials. In addition, the use of catalysts in many industrial processes of synthesis requires the characterization of their activity and efficiency using surface area, particle size and porosimetry measurements.