scope:

Specifies the requirements for pipes, fittings and the system of unplasticized poly(vinyl chloride) (PVC-U) piping system in the field of non-pressure underground drainage and sewerage - outside the building structure, and - for non-pressure underground drainage and sewerage for both buried in ground within the building structure and outside the building. 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.