The method of mercury porometry is widely used to determine the geometric structure of solid porous bodies. The porous structure of granular materials with a granule size of at least 1-2 mm is usually determined. However, in a number of fields (flotation enrichment processes, powder metallurgy), the objects of research are powders in which the minimum particle size is reduced to several tens of microns. The method of mercury porometry is of interest in studying the structure of powders...