Textiles — Water resistance — Rain tests: exposure to a horizontal water spray (ISO 22958:2021)
This document specifies a test for measuring the resistance of fabrics to the penetration of water byimpact. It can be used to predict the probable rain penetration resistance of textile fabrics.This document is applicable to any textile fabric, whether or not it has been given a water-resistantor water-repellent finish. It is especially suitable for measuring apparel fabrics. Testing at differentintensities of water impact gives a complete picture of the penetration resistance of a single fabric orcombination of fabrics. The test is particularly suitable when measuring highly water-resistant fabricswith low amounts of water penetration.
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