Ventilation for buildings. Ducts and ductwork components, leakage classification and testing Ingestion-build-48183 HFD S and HFD at

HFD S and HFD at temperatures ranging from -40 °C to 100 °C

This British Standard is not intended to cover fume cupboards for special applications such as carrying out work on radioactive materials

together with the possibility of a double marking (supplementary service description)

pressure and visual inspection test

Ventilation for buildings. Ducts and ductwork components, leakage classification and testing Ingestion-build-48183 HFD S and HFD at1 Scope This European Standard applies to technical ductwork products, intended for installation in ductwork conforming to EN 1505 and EN 1506, used in air conditioning and ventilation systems defined in the scope of CEN TC 156. This document specifies the leakage requirements for technical ductwork products, i. e. components in the ductwork that has more functions than conveying air, such as sound attenuators, filter boxes and duct fans, etc. The