Standard

NS-EN 1793-5:2016

Withdrawn

Note: This standard has a new edition: NS-EN 1793-5:2025

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Abstract

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.

Document information

  • Standard from SN
  • Published:
  • Withdrawn:
  • Edition: 2016-03
  • Version: 1
  • Document type: NAT
  • ICS 17.140.30
  • ICS 93.080.30
  • National Committee SN/K 236

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