This document specifies the definitions and requirements for buried circular manholes and inspection chambers installed to a maximum depth of 6 m from ground level to the invert of the main channel and manufactured from unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP), polypropylene with mineral modifiers (PP-MD) or polyethylene (PE). These products are intended for use in traffic areas and outside the building structure (application area code “U”) for wastewater (foul wastewater, domestic wastewater, surface water).

NOTE 1        Products conforming with this document are also suitable in non-traffic areas.

This document is only applicable to those chamber/manhole items where the manufacturer has clearly stated in the documentation how the components must be assembled to create a complete manhole or inspection chamber.

The products covered by this document comprise the following:

• products providing access to the drain or sewer systems by means of inspection and cleaning equipment.
• products designated as manholes providing additionally human access to the drain or sewer systems.

NOTE 2        Manholes and inspection chambers can be subject to national regulations and/or local provisions.

NOTE 3        Products conforming with this document can be installed in underground applications without additional static calculations.