scope:

This Prestandard gives the recommended practice for installation of thermoplastics piping systems in the field of soil and waste discharge (low and high temperature) inside buildings (marked with "B") and of soil and waste discharge systems for both inside buildings and buried in the ground within the building structure (marked "BD"). This Prestandard provides for material dependent installation techniques but it is important that the general installation practice as given in the relevant parts of EN 12056 for B application are taken into account in manufacturer's instructions, subject to any applicable national and/or local regulations. This Prestandard is applicable to thermoplastics pipes and fittings as specified in the associated system standards EN 1329-1 (PVC-U), EN 1451-1 (PP), EN 1453-1 (PVC-U with structures-wall pipes), EN 1455-1 (ABS), EN 1519-1 (PE), EN 1565-1 (SAN+PVC) and EN 1566-1 (PVC-C), their joints and to joints with components of other plastics and non-plastics materials intended to be used for the following purposes: a) soil and waste discharge pipework for the conveyance of domestic waste waters (low and high temperature); b) ventilating pipework associated with a); c) rainwater pipework within the building structure.