SR EN 13523-3:2014

Coil coated metals - Test methods - Part 3: Colour difference - Instrumental comparison

This part of EN 13523 specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate. Establishing a standard as well as the magnitude of an acceptable colour difference are not covered by this method. Two appropriate methods are given in this part of EN 13523: a) instrumental colour difference measurement using a tristimulus colorimeter; b) instrumental colour difference measurement using a spectrophotometer or equivalent. Care shall be taken when measuring e.g. - textured surfaces; - fluorescent coatings; - metameric coatings; - multi-coloured, pearlescent, metallic or special colour effect coatings. In order to determine whether metamerism is present, the metamerism index is determined (see EN 13523-15) and/or a visual examination (see EN 13523-22) is performed with different artificial light sources.

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General information

Status : Withdrawn
Approval date : 11/28/2014
Withdrawal date : 12/23/2021
Number of pages : 10
ICS : 25.220.60 Organic coatings
Technical Committee : 338 - Adhesives

Relations with other standards:

Replaces SR EN 13523-3:2002
Replaced by SR EN 13523-3:2021