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SSH EN 13523-3:2014

Metalet e veshura me pështjellë - Metodat e provës - Pjesa 3: Ndryshimi i ngjyrës - Krahasimi instrumental

Coil coated metals - Test methods - Part 3: Colour difference - Instrumental comparison
24 maj 2016
95.99 Withdrawal of Standard   29 sht 2025

General information

95.99     29 sht 2025

DPS

DPS/KT 298

European Norm

25.220.60  

anglisht  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
SSH EN 13523-3:2001

NOW

WITHDRAWN
SSH EN 13523-3:2014
95.99 Withdrawal of Standard
29 sht 2025

REVISED BY

PUBLISHED
SSH EN 13523-3:2024

Related project

Adopted from EN 13523-3:2014