Back

EVS-EN ISO 11641:2012

Leather - Tests for colour fastness - Colour fastness to perspiration (ISO 11641:2012)

General information
Valid from 04.01.2013
Base Documents
ISO 11641:2012; EN ISO 11641:2012
Directives or regulations
None
Standard history
Status
Date
Type
Name
This International Standard specifies a method for determining the colour fastness to perspiration of leather of all kinds at all stages of processing. It applies particularly to gloving, clothing and lining leathers, as well as leather for the uppers of unlined shoes. The method uses an artificial perspiration solution to simulate the action of human perspiration. Since perspiration varies widely from one individual to the next, it is not possible to design a method with universal validity, but the alkaline artificial perspiration solution specified in this International Standard will give results corresponding to those with natural perspiration in most cases. NOTE In general, human perspiration is weakly acidic when freshly produced. Micro-organisms then cause it to change, the pH usually becoming weakly alkaline (pH 7,5 to 8,5). Alkaline perspiration has a considerably greater effect on the colour of leather than has acid perspiration. Therefore, for coloured leather, an alkaline perspiration solution is used to simulate the most demanding conditions encountered in practice.
*
*
*
PDF
8.86 € incl tax
Paper
8.86 € incl tax
Price: 2.40 € incl tax
Standard monitoring
Customers who bought this item also bought
Main

EVS-EN ISO 11640:2012

Leather - Tests for colour fastness - Colour fastness to cycles of to-and-fro rubbing (ISO 11640:2012)
Withdrawn from 03.10.2018
Main

EVS-EN ISO 11642:2012

Leather - Tests for colour fastness - Colour fastness to water (ISO 11642:2012)
Newest version Valid from 04.01.2013
Main

EVS-EN ISO 4674-1:2016

Rubber- or plastics-coated fabrics - Determination of tear resistance - Part 1: Constant rate of tear methods (ISO 4674-1:2016)
Newest version Valid from 06.12.2016
Main

EVS-EN 14434:2010

Writing board for educational institutions - Ergonomic, technical anf safety requirements and their test methods
Newest version Valid from 06.04.2010