This International Standard specifies a spray test method for determining the resistance of any fabric, which might or might 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.
DIN EN ISO 4920:2012 Referenced Document
ISO 139 Textiles — Standard atmospheres for conditioning and testing AMENDMENT 1
DIN EN ISO 4920:2012 history
2012DIN EN ISO 4920:2012-12 Textile fabrics - Determination of resistance to surface wetting (spray test) (ISO 4920:2012); German version EN ISO 4920:2012
2012DIN EN ISO 4920:2012 Textile fabrics - Determination of resistance to surface wetting (spray test) (ISO 4920:2012); German version EN ISO 4920:2012
1970DIN EN ISO 4920 E:2010-11 Determination of moisture resistance of textile surfaces (spray test) (draft)