Measurement of helium and carbon dioxide permeability through polyamidoimide films

Gaseous Emissions Purification With the Polymer Gas-Distributing Membranes Application

“…The coefficient of permeability K of a number of standard gases was measured at a temperature of 298 K, on a device based on a chromatograph with a thermal conductivity detector [15,16], with a pressure drop of about 0.1 MPa, and a relative error of 20 %.…”