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.