Leather - Tests for colour fastness - Colour fastness to saliva
NORM herausgegeben am 1.1.2025
Designation standards: ČSN EN ISO 20701
Classification mark: 793869
Catalog number: 520314
Publication date standards: 1.1.2025
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN
This document specifies a method for determining the colour fastness to saliva of all kinds of leathers, independent of the colouring procedure applied.
The method uses an artificial saliva solution to simulate whether colouring materials can migrate from leather to the mouth or to the mucous membranes