This International Standard specifies a spray test method for determining the resistance of any fabric — which may or may not have been given a water-resistant or water-repellent finish — to surface wetting by water.
It is not intended for use in predicting the rain penetration resistance of fabrics, since it does not measure penetration of water through the fabric.
DS/ISO 4920:1982 history
2012DS/EN ISO 4920:2012 Textile fabrics - Determination of resistance to surface wetting (spray test)
1982DS/ISO 4920:1982 Textile fabrics. Determination of resistance to surface wetting (spray test)
DS/ISO 4920:1982 Textile fabrics. Determination of resistance to surface wetting (spray test) was changed to DS/EN ISO 4920:2012 Textile fabrics - Determination of resistance to surface wetting (spray test).