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Norm
ÖNORM EN 1793-5
Issue date: 2018 09 01
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
This European Standard describes a test method for measuring a quantity representative of the intrinsic characteristics of sound reflection from road noise reducing devic...
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Withdrawn
: 2019 02 15
Publisher:
Austrian Standards International
Format:
Digital | 64 Pages
Language:
German
| English
| Download GER/ENG
Currently valid:
Optionally co-design standards:
This European Standard describes a test method for measuring a quantity representative of the intrinsic characteristics of sound reflection from road noise reducing devices: the reflection index. The test method is intended for the following applications: — determination of the intrinsic characteristics of sound reflection of noise reducing devices to be installed along roads, to be measured either on typical installations alongside roads or on a relevant sample section;
— determination of the in situ intrinsic characteristics of sound reflection of noise reducing devices in actual use;
— comparison of design specifications with actual performance data after the completion of the construction work;
— verification of the long term performance of noise reducing devices (with a repeated application of the method).
The test method is not intended for the following applications:
— determination of the intrinsic characteristics of sound reflection of noise reducing devices to be installed in reverberant conditions, e.g. inside tunnels or deep trenches.
Results are expressed as a function of frequency, in one-third octave bands between 100 Hz and 5 kHz. If it is not possible to get valid measurements results over the whole frequency range indicated, the results should be given in a restricted frequency range and the reasons of the restriction(s) should be clearly reported.
ÖNORM EN 1793-5
2019 02 15
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5:...
Norm
ÖNORM EN 1793-5
2018 09 01
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5:...
Norm
↖
ÖNORM EN 1793-5
2016 10 15
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5:...
Norm
ÖNORM CEN/TS 1793-5
2003 10 01
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5:...
Vornorm
Technische Regel
ISO/IEC Guide 98-3:2008
Issue date :
2008 09 30
Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) (Corrected version 2010-11)
Norm
ÖNORM EN 1793-5
Issue date :
2019 02 15
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