scope:

Specifies the performance requirements and describes test methods for precast concrete units, including joints (elastomeric, plastomeric or other sealing materials, either integrated in the unit or supplied separately), for inspection chambers designed to be used for inverts not exceeding 2 metres deep and manholes, of circular, rectangular (with or without chamfered or rounded corners) or elliptical internal shape, unreinforced, steel fibre and reinforced, with nominal sizes not exceeding DN 1250 for units with a circular bore or LN 1250 for units with a rectangular or elliptical internal shape. The main intended use is within a drain or sewer system for the conveyance of sewage, rainwater and surface water under gravity or occasionally at low head of pressure, installed in aereas subjected to vehicular and/or pedestrian traffic. It provides for the evaluation of conformity of units to this European Standard. Marking conditions are included.