This Standard specifies requirements for thermoplastic elastomers and vulcanizates for moulding seals used in joints of -a) thermoplastic piping systems for non-pressure waste discharge (intermittent flow up to 95°C) inside buildings;b) thermoplastic piping systems for non-pressure underground drainage and sewerage (continuous flow up to 45°C and intermittent flow up to 95°C); andc) thermoplastic rainwater piping systems.General requirements for finished joint seals are also specified. Any additional requirements called for by the particular application are specified in relevant product Standards taking into account that the performance of pipe joints is a function of the seal material properties, seal geometry and pipe joint design. Note:Means for demonstrating compliance with this Standard are given in AppendixA.