Page 29 - 20250602 EEA QM Edition 6.0

Quality Requirements Edition 6.0 European Enamel Association

7.2.3 Quality requirements

Test method Requirement Remarks Frequency
4.2 material thickness min. 0.90 mm determination during design
4.3 thickness enamel coating max. 0.50 mm S4/AQL 6.5
4.4 cold citric acid min. class A when taking into production a sig.diff.
enamel recipe, but at least 1x a year
2
4.5 boiling citric acid max. 15 g/m per 2 1/2 hour when taking into production a sig.diff.
enamel recipe, but at least 1x a year
2
4.7 detergent solution max. 20 g/m per 24 hours test duration 24 hours when taking into production a sig.diff.
resistance enamel recipe, but at least 1x a year
4.9 impact resistance at 20 N no damage > 2 mm on test sheets conform to EN ISO 28764 when taking into production a sig.diff.
diameter after 24 hours enamel recipe, but at least 1x a year
4.10 adherence min. 2 on test sheets conform to EN ISO 28764 in production 1 x a day

4.19 colour difference even and smooth surface, evaluated equal to the appearance Colour difference possibly In production 100%
of an approved enamelled sample measured with a spectrometer and
tolerances previously agreed by
interested partners
4.26 abrasion resistance max. 0.1 gram in accordance with ASTM C501 when taking into production a sig.diff.
sandpaper S33/1kg/1000 rotations enamel recipe (excluding colour oxides)
but at least 1x a year

4.28 steel quality in accordance with norm EN 10209 is recommended: determination during design
DC04EK / DC05EK / DC06EK / DC07EK

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