90.93 Standard confirmed Sep 25, 2020
CEN
CEN/TC 139 Paints and varnishes
European Norm
25.220.60 Organic coatings
This part of EN 13523 describes the procedure to assess the relative hardness of an organic coating on a metallic substrate, by means of pencils of known hardness.
Smooth surfaces will give more accurate results but the method is also applicable for textured surfaces. The more pronounced the texture, the greater the unreliability of results.
WITHDRAWN
EN 13523-4:2001
PUBLISHED
EN 13523-4:2014
90.93
Standard confirmed
Sep 25, 2020