Page 44 - 20250602 EEA QM Edition 6.0

Quality Requirements Edition 6.0 European Enamel Association

7.10. QUALITY REQUIREMENTS FOR CAST IRON BATHTUBS, SHOWER BASINS

7.10.1 Application area

These requirements are applicable for cast iron bathtubs and shower basins for household and medical applications.

7.10.2 Test methods

Item Name Applicable standards
cast iron quality EN 1561
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 EN ISO 28706-1/9
other acids at room temperature
4.5 determination of the resistance to chemical corrosion by boiling citric acids EN ISO 28706-2/11, EN ISO 28706-2/6
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 - test apparatus according to EN ISO 28706-2
- test solution according to EN ISO 28706-3/9
4.9 determination of the resistance to impact EN ISO 4532
4.19 determination of colour difference EN ISO 18314, EN ISO/CIE 11664

© EEA2025 page 44