ISO 11298-1:2018 specifies the requirements and test methods for plastics piping systems intended to be used for the renovation of underground water supply networks. It is applicable to pipes and fittings, as manufactured, as well as to the installed lining system. It is not applicable to the existing pipeline or any non-structural sprayed coatings or annular filler. ISO 11298-1:2018 gives the general requirements common to all relevant renovation techniques.