Over deze norm
Applies to drain and sewer systems, which operate essentially under gravity, from the point where the sewage leaves a building or roof drainage system, or enters a road gully, to the point where it is discharged into a treatment works or receiving water. Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building. This part sets out the principles for the operation and maintenance of drain and sewer systems.
|Nederlandse titel||Buitenriolering - Deel 7: Gebruik en onderhoud|
|Engelse titel||Drain and sewer systems outside buildings - Part 7: Maintenance and operations|