DIN EN 15542:2008 - Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes - Requirements and test methods; German version EN 15542:2008
DIN EN 14901:2006 - Ductile iron pipes, fittings and accessories - Epoxy coating (heavy duty) of ductile iron fittings and accessories - Requirements and test methods; German version EN 14901:2006 (FOREIGN STANDARD)