This International Standard specifies a method for determining the behaviour of the surface of leather on rubbing with wool felt. The standard is applicable to leathers of all kinds. This document (EN ISO 11640:2012) has been prepared by Technical Committee CEN/TC 289 "Leather", the secretariat of which is held by UNI, in collaboration with the "International Union of Leather Technologists and Chemists Societies (IULTCS)". This document is based on method IUF 450. The responsible German standardization committee is Working Committee NA 062-05-51 AA "Anforderungen und physikalische Prüfverfahren für Leder und seine Ausgangsprodukte" ("Requirements and physical test methods of leather and ...") at the Materials Testing Standards Committee (NMP) at DIN.