This standard classifies gullies, gives guidance for places of installation and specifies requirements for the construction, design, performance and marking of factory made gullies for buildings, irrespective of material, for use in drainage systems operating under gravity including siphonic systems. NOTE Although normally used to convey domestic wastewater, industrial wastewater and rainwater, gullies can convey other wastewater provided there is no risk of damage to components or of injury to health. This standard does not apply to gully tops and manhole tops which are specified in EN 124.