DS/EN 1793-5:2016/AC:2018

Vejudstyr – Støjskærmning til dæmpning af trafikstøj – Prøvningsmetode til bestemmelse af den akustiske ydeevne – Del 5: Produktspecifikke karakteristika – In situ-værdier for lydrefleksion under forhold med direkte lydfelter


Status:
Gældende
Type:
Rettelsesblad
Sprog:
Engelsk
Pris fra:
kr. 0,00

Beskrivelse

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 shall be given in a restricted frequency range and the reasons of the restriction(s) shall be clearly reported.

Antal sider: 4

Udgivet: 2018-08-09

Godkendelsesdato: 2018-08-06

Internationale relationer : EN 1793-5:2016/AC:2018 IDT

ICS: 17.140.30 - Støj fra transportmidler 93.080.30 - Vejudstyr og installationer

Varenummer: M326756


Udvalg og komiteer

Komite

  • CEN/TC 226
  • CEN/TC 226/WG 6

Dansk udvalg

DS/S-349