20/30408013 DC

This standard 20/30408013 DC BS EN 1253-7. Gullies for buildings is classified in these ICS categories:

• 91.140.80 Drainage systems

This document classifies floor gullies for use inside buildings, gives guidance for places of installation and specifies requirements for the construction, design, performance and marking of factory made gullies for buildings, irrespective of the material, for use in drainage systems requiring a trap with a mechanical closure (referred to as floor gullies).

These products are intended to be installed where:

• the building does not exceed a ground-floor and three floors above;

• infrequent use could result in a water seal evaporating.