NF ISO 23232, G07-049 (07/2023)

ISO 23232:2009 provides guidance for the determination of hydrophobicity. It can provide an overall index of resistance to water stains because, in general, the higher the hydrophobicity class, the better the resistance to stains from water/alcohol-based materials and, in particular, water-based liquids. water/alcohol. This is particularly true when comparing the various finishes of a given substrate. ISO 23232:2009 can also be used to determine whether wet and/or dry cleaning treatments have adverse effects on the hydrophobic characteristics of a substrate. It is recommended that the wet and/or dry cleaning treatment procedures described in ISO 6330 or ISO 3175 be used for this purpose. ISO 23232:2009 is not intended to provide an absolute measure of the substrate's resistance to stains caused by water/alcohol based substances. Other factors, such as the composition and viscosity of water/alcohol-based substances, substrate design, fiber type, dyes and other finishing agents, also affect stain resistance. ISO 23232:2009 does not apply to the assessment of substrate resistance to penetration of water/alcohol based chemicals. For this assessment, refer to ISO 6530.
(Automatic translation from French)