Fabric breathability test

Breathability refers to the ability of air to pass through a fabric. Expressed as the rate at which the airflow passes vertically through the specimen under specified test area, pressure drop and time conditions. The breathability of the fabric directly affects the wearing performance of the fabric: for example, fabrics used in summer are expected to have better air permeability, while fabric outerwear used in winter should have less air permeability to ensure that the clothes have good windproof performance and prevent large amounts of heat from dissipating.
Zhongke Testing Environmental Reliability Experiment Center has the ability to test the reliability performance of various textile raw materials and products, and provides professional air permeability testing services for textiles.

fabric breathability testing can detect a variety of textile fabrics, including technical fabrics, nonwovens and other breathable textile products.

Under the specified pressure difference condition, measure the air flow rate vertically passing through a given area of the sample within a certain period of time, and calculate the air permeability. The air flow rate can be measured directly or converted by measuring the pressure difference on both sides of the flow aperture.

GB/T 5453-1997 Textiles - Determination of fabric air permeability
ISO 9237: 1995 Textiles - Determination of breathability of fabrics
EN ISO 9237: 1995 Textiles - Determination of air permeability of fabrics
BS EN ISO 9237: 1995 Textiles - Determination of air permeability of fabrics
DIN EN ISO 9237: 1995 Textiles Determination of air permeability of fabrics
NF EN ISO 9237: 1995 Textiles Determination of air permeability of fabrics
ASTM D737-18 Test method for air permeability of textile fabrics
JIS L 1096-1999 Test method for air permeability of textiles