Over deze norm
Is applicable to the construction and testing of drains and sewers normally buried in the ground and normally operating under gravity. The construction of pipelines operating under pressure is covered by this European Standard together with prEN 805 as appropriate. Is applicable to drains and sewers laid in trenches , under embankments or above ground. Trenchless construction will be covered in prEN 12889. Additionally other local or national requlations should be taken into account, e.g. concerning health and safety, pavement reinstatement and requirements for leaktightness testing etc.