scope:

Specifies the requirements for pipes, fittings and the system of polypropylene (PP) piping systems in the field of - non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and - non-pressure underground drainage and sewerage for both buried in ground within the building structure (application area code "D") and outside the building structure. This is reflected in the marking of products by "U' and "UD". It also specifies the test parameters for the test methods referred to in this standard. Covers a range of nominal sizes, a range of pipe series/stiffness classes and gives recommendations concerning colours.