This standard BS EN ISO 9237:1995 Textiles. Determination of the permeability of fabrics to air is classified in these ICS categories:
59.080.30 Textile fabrics
This International Standard describes a method for measuring the permeability of fabrics to air and is applicable to most types of fabrics, including industrial fabrics for technical purposes, nonwovens and made-up textile articles that are permeable to air.