DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
ISO 7235
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss
Akustik - Labormessungen an Schalldämpfern in Kanälen - Einfügungsdämpfung, Strömungsgeräusch und Gesamtdruckverlust
Responsible national committee
NA 001-02-03 AA - Sound propagation, noise control and noise reduction