KS I 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 room
2020KS I 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 room
2014KS I ISO 5135:2014 Acoustics — Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room
2004KS I ISO 5135:2004 Acoustics-Determination of sound power levels of noise fromair-terminal devices, air-terminal units, dampers and valves bymeasurement in a reverberation room