scope:

This European Standard applies to fire resisting duct sections, placed on the market and intended to operate as part of a pressure differential system or HVAC system. This standard specifies requirements and gives reference to the test methods defined for fire resisting duct sections and their associated components, which are intended to be installed in HVAC systems in buildings. It also provides the evaluation of conformity of the products to the requirements of this standard. Furthermore, marking and information on installation and maintenance of these products are also given in this European Standard

To avoid duplication, reference is made to a variety of other standards. To this end this standard is to be read in conjunction as well as with EN 13501-3 for classification and EN 1366-1 and EN 15080-10 for details of the fire resistance testing.

This European Standard also governs associated components used together with fire resisting duct sections such as turning vanes and silencers, and access panels, which are covered by separate standards.

Duct sections for use other than in fire resisting HVAC systems are not covered by this standard.