ASTM D737

Standard Test Method for Air Permeability of Textile Fabrics

This test method covers the measurement of the air permeability of textile fabrics.

This test method applies to most fabrics including woven fabrics, nonwoven fabrics, air bag fabrics, blankets, napped fabrics, knitted fabrics, layered fabrics, and pile fabrics. The fabrics may be untreated, heavily sized, coated, resin-treated, or otherwise treated.