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ČSN EN 16272-5 (736342)
Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - Sound absorption under direct sound field conditions
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STANDARD published on 1.6.2024
The information about the standard:
Designation standards: ČSN EN 16272-5
Classification mark: 736342
Catalog number: 519053
Publication date standards: 1.6.2024
SKU: NS-1186144
The number of pages: 72
Approximate weight : 216 g (0.48 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN 16272-5 (736342):
This document describes a test method for measuring a quantity representative of the intrinsic characteristics of sound absorption from railway noise barriers and related devices acting on airborne sound propagation, the sound reflection index RI, and then calculate a single-number rating for sound absorption from it. The test method is intended for the following applications: - determination of the intrinsic characteristics of sound absorption of noise barriers and related devices acting on airborne sound propagation to be installed along railways, to be measured either on typical installations alongside railways or on a relevant sample section; - determination of the intrinsic characteristics of sound absorption of noise barriers and related devices acting on airborne sound propagation in actual use under direct sound field conditions; - comparison of design specifications with actual performance data after the completion of the construction work; - verification of the long-term performance of noise barriers and related devices acting on airborne sound propagation (with a repeated application of the method). The test method is not intended for the following applications: - determination of the intrinsic characteristics of sound absorption of noise barriers and related devices acting on airborne sound propagation to be installed in reverberant conditions, e.g. inside tunnels or deep trenches. Results for the sound reflection index are expressed as a function of frequency, in one-third octave bands, where possible, between 100 Hz and 5 kHz. If it is not possible to get valid measurements results over the whole frequency range indicated, the results are given in a restricted frequency range and the reasons of the restriction(s) are clearly reported
Preview of the standard ČSN EN 16272-5 (736342)
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