DIN EN ISO 5135:1999 Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room (ISO 5135:1997); German version EN ISO 5135:1998
2020DIN EN ISO 5135:2020 Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020); German version EN ISO 5135:2020
1999DIN EN ISO 5135:1999 Acoustics - Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room (ISO 5135:1997); German version EN ISO 5135:1998