News

There are two test methods for air permeability: positive cup and inverted cup; Positive cup method: ASTM E-96 A, C, E; JIS L-1099 A1; Pour cup method: American standard ASTM-E96, Japanese standard test JIS-L1099B1; This test uses pre-wash data! Domestic outdoor practitioners and outdoor enthusiasts are called breathable breathable, or breathable directly called breathable, the two words are confused together called incorrect, not rigorous, breathable and breathable are completely two concepts, which need to be distinguished and correctly understood;

Method Air Permeabbility (MAP) : the ability of air to permeate a fabric; Under the conditions of specified pressure difference, the air flow through the sample in a given area is measured vertically in a certain time, and the air permeability is calculated. The airflow rate can be measured directly, or it can be obtained by measuring the flow rate on both sides of the aperture. This is the real sense of breathable!