Page 67 - QRedition5.0 062021

Quality Requirements Edition 5.0 European Enamel Association

C. Enamelling

Test method Requirement Remarks Frequency
4.3 thickness enamel coating the mean of the 54 measurements (36 measurements at point for measuring method: see § 4 1 % in production
number 1 and point number 2 of the corrugated panel plus the
18 measurements at point number 3 of the undulated panel)
shall be 150 µm ± 30 µm, unless a different mean is agreed
between customer and supplier at the time of ordering.
Along the area bordering the edge of the panel the total
thickness may measure up to 600 µm (i.e. 2 sides of 300 µm)
plus thickness of the substrate. If a different mean has been

agreed between customer and supplier then total enamel ISO 1463 measurements other than those on the
thickness along the area bordering the edge of the panel may indicated position points shall be

vary, but should be kept to a minimum to avoid chipping, determined using a microscope
spalling etc.

With the exception of edges and suspension holes, the
application thickness beside the measuring point (such as bot h

sides of the notches of the corrugation) shall nowhere fall
below 80 µm
4.10/4.43 adherence min. 2 A on test sheets conform to EN ISO 28764 in production 2 x per day
and EN ISO 28763

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