Page 33 - 20250602 EEA QM Edition 6.0
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Quality Requirements Edition 6.0                                                                                  European Enamel Association




           7.4.3  Quality requirements


              Test method                 Requirement                                    Remarks                              Frequency
              4.3 thickness enamel coating   max. 0.40 mm                                                                     S4/AQL 6.5
              4.4 cold citric acid        class A                                                                             when taking into production a sig.diff.
                                                                                                                              enamel recipe, but at least 1x a year
              4.8 release of toxic elements   conform requirements of the national laws                                       when taking into production a sig.diff.
                                                                                                                              enamel recipe
              4.9 impact resistance       at 20 N no damage > 2 mm diameter after 24 hours                                    when taking into production a sig.diff.
                                                                                                                              enamel recipe, but at least 1x a year
              4.10 adherence              min. 2                                                                              1x a day
              4.19 colour difference      even and smooth surface, evaluated equal to the   Colour difference possibly measured with a   In production 100%
                                          appearance of an approved enamelled sample     spectrometer and tolerances previously
                                                                                         agreed by interested partners
              4.28 steel quality          in accordance with norm EN 10209               is recommended:                      determination during design
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            © EEA2025                                                                                                                                 page 33
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