CORROSION RESEARCH ROUND‐UP

GERMANY Sintered metal filters. Porous sintered metal filters have been used in the U.S.A. for some time and are now becoming increasingly important in Europe for chemical equipment. The structure of porous sintered metals and the influence of granulation of the used powder on the arrangement of the desired filtering channels are explained, in order to show their possible applications. Present‐day available materials, their pressure drop and chemical resistance, and mechanical and physical properties are discussed.