Short description
Rußfastness Tester 1- and 2-digit (RET 3059/1, RET 3059/2)
according to DIN EN ISO 11 640 ( former DIN 53 339)
The testing machine allows to evaluate the resistance of dyeing and finishing of leather and textile materials to a friction stress of the surface.
This test method is particularly important for testing the rub fastness of shoe linings and the upper leather back of liningless shoes.
