EN 1793-1:2017 Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions
This European Standard specifies the laboratory method for measuring the sound absorption performance of road traffic noise reducing devices in reverberant conditions. It covers the assessment of the intrinsic sound absorption performance of devices that can reasonably be assembled inside the testing facility described in EN ISO 354. This method is not intended for the determination of the intrinsic characteristics of sound absorption of noise reducing devices to be installed on roads in non-reverberant conditions. The test method in EN ISO 354 referred to in this European Standard excludes devices that act as weakly damped resonators. Some devices will depart significantly from these requirements and in these cases, care is needed in interpreting the results.
EN 1793-1:2017 Referenced Document
EN 1793-3:1997 Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum
EN 1793-5:2016 Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection under direct sound field conditions
EN ISO 354:2003 Acoustics - Measurement of sound absorption in a reverberation room ISO 354:2003
ISO 9613-1:1993 Acoustics; attenuation of sound during propagation outdoors; part 1: calculation of the absorption of sound by the atmosphere
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
EN 1793-1:2017 history
2017EN 1793-1:2017 Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions
2012EN 1793-1:2012 Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption
1997EN 1793-1:1997 Road Traffic Noise Reducing Devices - Test Method for Determining the Acoustic Performance - Part 1: Intrinsic Charateristics of Sound Absorption