scope:

This document applies to gully tops and manhole tops with a clear opening up to and including 1 000 mm for installation within areas subjected to pedestrian and/or vehicular traffic. It applies for manhole tops and gully tops of classes A 15 to F 900 made of steel reinforced concrete. This document is not applicable in isolation but only in combination with prEN 124-1. This document does not apply ? for concrete fillings of covers, gratings and frames on site, eg. concrete, paving blocks etc., ? for gratings as part of prefabricated drainage channels according to EN 1433, ? to floor and roof gullies in buildings which are specified in EN 1253 (all parts) and to surface boxes. This part 4 is not applicable in isolation but only in combination with prEN 124-1.