DS EN 14525 : 2004

Defines the requirements and associated test methods applicable to wide tolerance ductile iron couplings and wide tolerance flange adaptors intended for use with pipe components made from a number of pipe materials (ductile iron, grey iron, PE, PVC-U, steel, fibre-cement), for providing a leak tight seal over a wide range of pipe external diameters: - to convey water (e.g. potable water) ; - with or without pressure ; - to be installed below or above ground, inside or outside buildings.