Porometry is ideal for the pore size measurement of track-etched membranes since

these materials usually have almost a perfect cylindrical pore structure from one side

to the other. Calculated pore number distributions yield numbers close to that of

other methods such as electron microscopy.

Porometry is the most ideal method for measuring the pore size distribution of sheet

materials. Very high-resolution measurements are possible. This application note

deals with two coated specialized papers that are very similar.

The measurement of pore size data for automotive and other air filters with

Porometry is very straightforward. These samples were measured with a Porometer

This is the one of the classic applications for Porometry, the method of displacing a

wetting fluid from a porous sample by applying an increasing gas pressure to one

The WSI POROMETER gas displacement models (3G, 3Gz, micro, macro and nano) monitor

the expulsion of a wetting liquid from the pores of a specimen with increasing pressure. 

This application note gives details of both gas displacement and liquid