= Barrer
{wiki=Barrer}
A Barrer is a unit of measurement used to express the permeability of gases through porous materials, particularly in the context of membrane technology and materials science. One Barrer is defined as the permeation rate of one centimeter cubed of gas per second, through a area of one square centimeter, under pressure differences of one atmosphere per centimeter of thickness of the material. The unit is often used in assessing the performance of gas separation membranes.
Back to article page