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 ground within the building structure (marked with "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 standards EN 1329-1 (PVC-U), EN 1451-1 (PP), EN 1453-1 (PVC-U with structured-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);
NOTE 1 See clause 4 for waste discharge temperature limits.
b) ventilating pipework associated with a);
c) rainwater pipework within the building structure (see Figure 1, key 16).
It is applicable to pipes and fittings, marked with "B", which are intended to be used above ground only, and to pipes and fittings, marked "BD", which are intended to be used above and buried in ground within the building structure.
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