Page 37 - 20250602 EEA QM Edition 6.0

Quality Requirements Edition 6.0 European Enamel Association

7.6.3 Quality requirements

Test method Requirement Remarks Frequency
4.3 thickness enamel coating internal 0.20-0.50 mm in production S4/AQL 6.5
external max. 0.70 mm excluding décor

4.4 cold citric acid internal min. class A when taking into production a sig.diff.
enamel recipe, but at least 2x a year
4.5 boiling citric acid internal weight loss: on test sheets conform EN ISO 28764 when taking into production a sig.diff.
max. 10 g/m per 2 1/2 hours enamel recipe, but at least 2 x a year
2
2
4.6 boiling water internal weight loss: max. 5 g/m /24h (mean value) on test sheets conform EN ISO 28764 when taking into production a sig.diff.
test duration 48 hours enamel recipe, but at least 2 x a year
water vapour internal weight loss: max. 10 g/m /24h (mean value)
2
4.7 detergent solution in consultation but claim per 24 hours on test sheets conform EN ISO 28764, when taking into production a sig.diff.
test duration 24 hours enamel recipe, but at least 2 x a year
4.8 release of toxic elements conform requirements national laws when taking into production a sig.diff.
enamel recipe and following
requirements of proper and safe
surveillance plan
4.9 impact resistance at 20 N no damages > 2 mm diameter after 24 hours weekly min. 3 pans/pots

4.11 thermal shock resistance 280 °C not applicable for lids when taking into production a sig.diff.
enamel recipe but at least 1x per month
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
4.39 adherence min. “good” weekly min. 3 pans/pots

7.6.4 Remark

On top of the quality requirements mentioned here above, also the requirements as mentioned in 4.23 need to be met.
For the testing frequency at 4.23, 4.9 and 4.11, tests can be carried out on the same three products, taking into account a logical sequence 4.23 - 4.11 then 4.9.

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