The standard specifies an instrumental method for assessing the change in colour of a test specimen in comparison to an identical untreated reference, and the calculations undertaken to convert the instrumental measurements into a grey scale rating. This method is intended as an alternative to the methods for visual evaluation of the effect of a colour fastness test on any textile material.
Number of pages: 16
Date of approval: 1997-09-30
EN ISO 105-A05:1997 IDTISO 105-A05:1996 IDT