Page 40 - QRedition5.0 062021

Quality Requirements Edition 5.0 European Enamel Association

7.8. QUALITY REQUIREMENTS FOR PORCELAIN AND VITREOUS ENAMELLED WASHING MACHINES, DRUMS AND SPINNER BASKETS, WASH KETTLES, DISH-WASHERS AND DRYERS

7.8.1 Application area

This norm is applicable for parts of washing boilers, drums and spinner baskets, enamelled parts such as:
- washing machines: washing drums, spinner baskets, cover-tops and outside parts
- washing kettles: bottom plates and lids
- dish-washers: rinsing-areas and outside panels
- dryers: outside panels

7.8.2 Test methods

Item Name Comparable standards
4.2 measurement of the thickness of the base substrate metal EN 14127
4.3 measurement of the thickness of the enamel coating EN ISO 2178, EN ISO 2360, EN ISO 1463
4.4 determination of the resistance to chemical corrosion by citric acid or

other acids at room temperature EN ISO 28706-1/9
4.6 determination of the resistance to chemical corrosion by boiling water and/or water vapour EN ISO 28706-2/14, EN ISO 28706-2/6
4.7 determination of the resistance to chemical corrosion by boiling detergent solution EN ISO 28706-3/10, EN ISO 28706-2/6
4.9 determination of the resistance to impact ISO 4532
4.10 determination of the adherence of the enamel to the substrate EN 10209 Annex C
4.11 determination of the resistance to thermal shock ISO 2747
4.28 determination of the quality of steel for enamelling EN 10209 for cold rolled steel and EN 10025 or EN 10111 for hot rolled steel
or EN 10149 for HSLA steels
and EN 10222-1 for steel forgings for pressure applications

© EEA2020 page 40
EEA2020