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Normas DIN – AENOR
DIN EN 1793-5:2014-05

DIN EN 1793-5:2014-05

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; German version prEN 1793-5:2014 / Note: Date of issue 2014-04-11

Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination de la performance acoustique - Partie 5: Caractéristiques intrinséques - Valeurs in-situ à reflexion acoustique dans des conditions de champ acoustique direct; Version allemande prEN 1793-5:2014 / Attention: Date de parution 2014-04-11

Lärmschutzvorrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 5: Produktspezifische Merkmale - In-situ-Werte der Schallreflexion in gerichteten Schallfeldern; Deutsche Fassung prEN 1793-5:2014 / Achtung: Erscheinungsdatum 2014-04-11

Fecha Anulación:
2016-10 /Withdrawn
Equivalencias internacionales:

prEN 1793-5 (2014-03)

Resumen:
The present document 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 shall be given in a restricted frequency range and the reasons of the restriction (s) shall be clearly reported.
Keywords:
Acoustic absorption, Acoustic measurement, Acoustic properties and phenomena, Acoustics, Airborne sound insulation, Building acoustics, Definitions, In situ, Indexes, Laboratory testing, Measurement, Measuring instruments, Measuring techniques, Methods for measuring, Noise control, Noise control devices, Noise protection devices, Noise protection walls, Noise reduction, Properties, Protection devices, Roads, Sound absorption coefficient, Sound fields, Sound insulation, Sound insulation measure, Sound insulation requirement, Sound reflection, Sound sources, Testing, Traffic noise
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