ASTM D 737 - 04 (Reapproved 2012) Standard Test Method for Air Permeability of Textile Fabrics

American Society for Testing and Materials (ASTM). Current edition approved July 1, 2012. Published August 2012. Originally approved in 1943 . Last previous edition approved in 2008 as D737 – 04(2008). 5 p. 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, fabrics, knitted fabrics, layered fabrics, and pile fabrics. The fabrics may be untreated, heavily sized, coated, resintreated, or otherwise treated.