EN 13180

EN 13180 Ventilation for buildings - Ductwork - Dimensions and mechanical requirements for flexible ducts - This standard specifies requirements and test methods for the technical characteristics of flexible ducts used in ventilation and air conditioning installations in buildings for human occupancy. This standard identifies the following parameters which shall be tested or inspected: - dimensions and tolerances; - mechanical resistance. Acoustic, thermal, reaction to fire, and pressure loss properties of flexible ducts are not covered in this standard.

Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.