Ventilation for buildings. Ducts and ductwork components, leakage classification and testing Ingestion-build-48183 together with the possibility of

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

taking into account the service condition limits specified in the relevant product standards

and improve benchmarking for IT project performance

ISO 23997 is an international standard that discusses resilient floor coverings

Ventilation for buildings. Ducts and ductwork components, leakage classification and testing Ingestion-build-48183 together with the possibility of1 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