DIN Standards Committee Water Practice
Investigation and assessment of drain and sewer systems outside buildings - Part 2: Visual inspection coding system
Abstract
(Revision of EN 13508-2 in order to include additional coding structures already in use by some member countries plus addition of a small number of coding enhancements. There will be no changes to existing codes already in use within the current version of the standard in order to ensure backward compatibility with existing survey data archives.) This European Standard is applicable to the investigation and assessment of drain and sewer systems outside buildings. It is applicable to drain and sewer systems, which operate essentially under gravity, from the point where the wastewater 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 body. Drains and sewers below buildings are included provided that they do not form part of the drainage system of the building. This part of the European Standard specifies a coding system for the description of the internal condition of drains, sewers, manholes and inspection chambers identified through visual inspection. Where appropriate, it can also be used for pressure and vacuum systems in accordance with the requirements of the employing authority. Visual inspection of drain and sewer systems can be carried out as part of the investigation in order to undertake the assessment. This part of the European Standard does not generally specify requirements for carrying out inspections.
Begin
2026-08-31
WI
00165373
Planned document number
prEN 13508-2 rev
Responsible national committee
NA 119-05-35 AA - Design and operation of drains and sewers (CEN/TC 165/WG 22)
Responsible european committee
CEN/TC 165/WG 22 - Drain and sewer systems outside buildings
