ASTM D737 - Standard Test Method for Air Permeability of Textile Fabrics
Scope
- 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.
- The values stated in SI units are to be regarded as the standard. The values stated in inch-pound units may be approximate.
- This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Summary of Test Method
The rate of air flow passing perpendicularly through a known area of fabric is adjusted to obtain a prescribed air pressure differential between the two fabric surfaces. From this rate of air flow, the air permeability of the fabric is determined.
Testeur de perméabilité à l air TQD-G1
TQD-G1 est conçu professionnellement pour la détermination de la perméabilité à l'air des matériaux de décoration utilisés dans les voitures, par ex. le polyuréthane, les plastiques expansés, PVC, le cuir, les textiles, les non-tissés et les autres matériaux. Grâce au test, les caractéristiques physiques des matériaux ont pu être contrôlées pour répondre aux exigences d'application pratique.