scope:

This European Standard specifies the material, dimensional and performance requirements, including methods of test, for precast concrete flue liners and fittings for the construction of multi-wall chimneys.
Thermal testing may be carried out with or without insulation.
This standard does not cover:
. high positive pressure (H) designated products;
. products designated wet (W) in conjunction with corrosion class 3.
This standard also applies to storey-height and flue liners reinforced for handling.
NOTE Any reference to the term flue liners implies both flue liners and their fittings, except where otherwise indicated.