Could someone explain me what is the Gurley method to determine the airflow through a material & give the relationship w/ the airflow in ml/(min.mm².mbar) ?
thx
Gurley numbers are used to indicate the relative permeability of membranes or materials...The number (in sec) is obtained by measuring how long a known volume of air at constant pressure takes to pass through a material.
Your constants would be air Pressure, Area of membrane...