January 2018
ASTM International renews its ASTM D737-18 Air Permeability Testing Standard entitled “Standard Test Method for Air Permeability of Textile Fabrics”.
ASTM D737 is the original and defacto air permeability testing standard worldwide. D737 was written based upon the Frazier Differential Pressure Air Permeability Tester in the 1940s. All other international air permeability standards are based upon ASTM D737.