FIELD: technological processes.
SUBSTANCE: device consists of water and etchant tanks in parallel connected to the switching tap by first and second tubular channels, connected in series by the third tubular channel with a pump, a flow velocity sensor, a sample fixing chamber consisting of successively hermetically sealed and forming a continuation of the third tubular channel of the inlet cover with a hole in which the input pressure sensor of the housing is mounted, in which two holders and a clamping nut for fastening the sample, outlet lid with a hole, in which a output pressure sensor and the output channel are installed are mounted.
EFFECT: invention makes it possible to control the increase in pore size, porosity and permeability, to measure the permeability of liquids.
3 dwg
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