ASTM C522
Standard Test Method for Airflow Resistance of Acoustical Materials
ASTM D737
Standard Test Method for Air Permeability of Textile Fabrics
ASTM D3574
Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams
ASTM F778
Standard Methods for Gas Flow Resistance Testing of Filtration Media
ISO 9237
Textiles -- Determination of the permeability of fabrics to air
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