This European Standard specifies the mounting and fixing of components in the test apparatus to thermal attack by a single burning item (SBI) according to EN 13823. This document is applicable to non-pressure plastics pipes, fittings and their joints intended for soil and waste applications: - inside the building (application area code ""B""); - buried in ground within the building structure (application area code ""BD"") and with a diameter greater than or equal to 75 mm. It is also applicable to pressure plastics pipes, fittings and their joints within the building structure: - intended for water for general purposes, drainage, sewerage, as well as for any other pressure application with other fluids covered by the Construction Products Directive; - hot and cold water installations for the conveyance of water and for heating systems.