Page 83 - 20250602 EEA QM Edition 6.0

Quality Requirements Edition 6.0 European Enamel Association

7.22. QUALITY REQUIREMENTS FOR PORCELAIN AND VITREOUS ENAMELLED VALVES AND FITTINGS OF CAST IRON IN CONTACT WITH WATER

7.22.1 Application area

These requirements are applicable for parts of cast iron in contact with raw water and drinking water.

7.22.2 Test methods

Item Name Applicable standards
3.9.5.3 cast iron quality DIN EN 1561, DIN EN 1563
3.9.3 determination of the hardness referring to Mohs EN ISO 6769
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 EN ISO 28706-1/9
or other acids at room temperature
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
4.9 determination of the resistance to impact EN ISO 4532
4.13 determination, detection and location of defects (non-destructive) EN ISO 8289
4.18 determination of scratch resistance EN ISO 15695
4.19 determination of colour difference EN ISO 18314, EN ISO/CIE 11664
4.26 determination of abrasion resistance EN ISO 6370-1and 6370-2
4.40 determination of thermal shock resistance of enamelled articles into water EEA Specification 8.6.4
4.48 determination of the resistance against corrosion and creeping after mechanical impact EEA specification 8.6.7
4.49 determination against climatic impact like weathering and UV-resistance EEA specification 8.6.8

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