I.S. EN 13523-22:2017现行
Coil Coated Metals - Test Methods Part 22: Colour Difference - Visual Comparison
出版：National Standards Authority of Ireland
专家解读视频
Defines the procedure for determining the difference in the colour of an organic coating on a metallic substrate by visual comparison against a standard using either diffuse natural daylight or artificial daylight in a standard booth.
ONORM EN 13523-22:2017 - Identical
NF EN 13523-22:2017 - Identical
UNI EN 13523-22:2017 - Identical
UNE EN 13523-22:2017 - Identical
NS EN 13523-22:2017 - Identical
