Page 27 - QRedition5.0 062021

Quality Requirements Edition 5.0 European Enamel Association

7.1.3 Quality requirements

Test method Requirement Remarks Frequency

4.2 material thickness burner lid and grates made of cast iron min. 3 mm determination during design
troughs, baking trays and external parts min. 0,70 mm
switch panels min. 0,60 mm
baking ovens min. 0,50 mm
4.3 thickness enamel coating cast iron burner caps and pan supports max. 0.60 mm S4/AQL 6.5
other applications max. 0.40 mm
4.4 cold citric acid min. class A + when taking into production a sig.diff.
enamel recipe, but at least 1x a year
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. 3; for thick material min ”good” may be done on test sheets (see 4.1) in production 1 x a day
according to EEA 8.6.3
4.17 gloss degree max. allowed difference at a measuring angle of 60 is: for burner caps, hobs, when taking into production a sig.diff.
+ 4 at gloss 0 - 30 control panels and outside panels enamel recipe, but at least 1x a year

+ 6 at gloss 30 - 70
+ 8 at gloss 70 - 100
4.21 resistance to heat burner caps and pan supports 400 °C during 3 hours; when taking into production a sig.diff.
enamel recipe, but at least 1x a year
4.28 steel quality in accordance with norm EN 10209 determination during design
4.39 adherence for cast iron: min. good may by done on test sheets (see 4.1) in production 1 x a day

4.40 thermal shock resistance burner caps and pan supports 380 °C (5x) for pan supports only in production 1 x a day
hobs 200 °C (5x) applicable for the fingertips

baking platies 260 °C (5x)

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