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
This document establishes general rules for the acoustic testing of air-terminal devices, air-terminal units, dampers and valves used in air diffusion and air distribution systems in order to determine sound power levels as defined in ISO 3741.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Acoustic test facilities and procedures
5 Installation and operation of equipment to be tested
5.1 General
5.2 Test installation of air-terminal devices, air-terminal units, dampers and valves for measurement of the sound radiated to the reverberation test room
5.3 Test installation of air-terminal devices, air-terminal units, dampers and valves for the measurement of the sound radiated to the reverberation test room by the connecting duct
5.4 Test installation of air-terminal devices, air-terminal units, dampers and valves for the measurement of the sound radiated to the reverberation test room directly from the equipment under test
5.5 Test installation of air-terminal units for the determination of casing radiated noise
5.6 Test procedures
6 Auxiliary facilities for acoustic testing
7 Measurements and calculations
8 Measurement uncertainty
9 Test report
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Acoustic test facilities and procedures
5 Installation and operation of equipment to be tested
5.1 General
5.2 Test installation of air-terminal devices, air-terminal units, dampers and valves for measurement of the sound radiated to the reverberation test room
5.3 Test installation of air-terminal devices, air-terminal units, dampers and valves for the measurement of the sound radiated to the reverberation test room by the connecting duct
5.4 Test installation of air-terminal devices, air-terminal units, dampers and valves for the measurement of the sound radiated to the reverberation test room directly from the equipment under test
5.5 Test installation of air-terminal units for the determination of casing radiated noise
5.6 Test procedures
6 Auxiliary facilities for acoustic testing
7 Measurements and calculations
8 Measurement uncertainty
9 Test report
Bibliography