The D-150 Homogenizer is indispensable for the correct preparation of pulp suspensions to be used in the determination of refining degree.This instrument maintains pulp suspensions in constant movement by means of a rotation speed of 150 rpm. This prevents sedimentation and guarantees a perfect homogeneous suspension of already properly desintegrated fibres without any change in their structural properties.These suspensions can be used in the determination of the refining degree according to the Schopper-Riegler and Canadian Freeness methods, and for the preparation of laboratory sheets for physical testing according to the Conventional- and Rapid-Köthen sheet forming methods.