Permeability Number

Permeability Number and Frazier Number ® are used interchangeably throughout the permeability testing industry

Permeability Number - a number used to indicate the relative ability of a substance to allow a fluid to permeate its surface.

Frazier Number - The permeability number usually expressed as "CFM" which is cubic feet/min/square feet of sample with a reference point of 0.5 inches of differential water pressure.

Applicable Apparatus

see also: Frazier Number