Abstract: A porosimeter for investigating physicochemical properties of materials and articles, in particular for investigation of a structure of porous bodies, including a scale, a clamping device for bringing into contact standard and test porous samples, the samples containing wetting liquid in its pores, and an automatic manipulator. The automatic manipulator includes a body, a frame, a motor connected with the frame by a transmission, the motor having pushers and a support. The clamping device for bringing the standard and test porous samples into contact with each other includes a drying device connected with the body, and yokes.