This International Standard specifies the requirements for solid-wall polypropylene (PP) pipes and fittings for soil and waste discharge (low and high temperature) inside buildings, as well as the system itself. It does not include buried pipework. It also specifies the test parameters for the test methods referred to in this International Standard. This International Standard is applicable to PP pipes and fittings, as well as assemblies of such pipes and fittings, 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) ventilation pipework associated with a); c) rainwater pipework inside the building. It is applicable to pipes and fittings for jointing by means of elastomeric sealing rings or by butt fusion.