DIN EN ISO 20433
Leather - Tests for colour fastness - Colour fastness to crocking (ISO 20433:2024); German version EN ISO 20433:2024
Leder - Farbechtheitsprüfungen - Farbechtheit gegen Reiben (ISO 20433:2024); Deutsche Fassung EN ISO 20433:2024
Overview
This document specifies a method to determine the amount of colour transferred from the surface of coloured leather to other surfaces by rubbing. Two tests are carried out, one with a dry rubbing cloth and one with a wet rubbing cloth. The method is applicable to all types of coloured leather. Since after‑treatments of the leather as well as surface finishes can affect the degree of colour transfer, the test can be made before and/or after such treatments. The responsible national standardization committee 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 DIN Standards Committee Materials Testing (NMP).
Responsible national committee
NA 062-05-51 AA - Requirements and physical test methods of leather and ....
Responsible european committee
CEN/TC 289/WG 3 - Fastness test methods
Responsible international committee
IULTCS - International Union of Leather Technologists and Chemists Societies