🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN 16272-5:2023

BS EN 16272-5:2023

$215.11

Railway applications. Infrastructure. Noise barriers and related devices acting on airborne sound propagation. Test method for determining the acoustic performance – Intrinsic characteristics. Sound absorption under direct sound field conditions

Published By Publication Date Number of Pages
BSI 2023 72
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

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.

PDF Catalog

PDF Pages PDF Title
2 undefined
53 Annex A (informative) Low-frequency limit and window width
A.1 General
57 Annex B (informative) Measurement uncertainty
B.1 General
B.2 Measurement uncertainty based upon reproducibility data
B.3 Standard deviation of repeatability and reproducibility of the sound reflection index
59 Annex C (normative) Template of test report on sound reflection index of railway noise barriers and related devices acting on airborne sound propagation
C.1 General
62 C.2 Test setup (example)
63 C.3 Test object and test situation (example)
65 C.4 Test Results (example)
C.4.1 Part 1 – Results in tabular form
66 C.4.2 Part 2 – Results in graphic form
C.5 Uncertainty (example)
68 Annex D (informative)Indoor measurements for product qualification
D.1 General
D.2 Parasitic reflections
D.3 Reverberation time of the room

Related products

BS EN 16272-5:2023
$215.11