This European Standard applies to lifting plants for faecal-free wastewater for drainage of locations below flood level in buildings and sites outside buildings to prevent any backflow of wastewater into the building. This part of this European Standard contains general requirements, basic construction and testing principles, together with information on materials and conformity evaluation. NOTE 1 Construction and testing requirements of non-return valves for lifting plants for faecal-free wastewater are given in EN 12050-4. NOTE 2 For pumping installations for drain and sewer systems outside buildings which are used for pumping into the municipal sewer system, see EN 752-2008, Annex F.