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BS EN 16272-6:2023 – TC

BS EN 16272-6:2023 – TC

$258.26

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

Published By Publication Date Number of Pages
BSI 2023 142
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This document describes a test method for measuring a quantity representative of the intrinsic characteristics of airborne sound insulation for rail noise barriers and related devices: the sound insulation index. The test method is intended for the following applications: – determination of the intrinsic characteristics of airborne sound insulation of noise barriers and related devices to be installed along railways, to be measured either on typical installations alongside railways or in laboratory conditions; – determination of the intrinsic characteristics of airborne sound insulation of noise barriers and related 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 barriers and related devices (with a repeated application of the method); – interactive design process of new products, including the formulation of installation manuals. The test method is not intended for the determination of the intrinsic characteristics of airborne sound insulation of noise barriers and related devices to be installed in reverberant conditions, e.g. inside tunnels or deep trenches or under covers. Results 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 measurement results over the whole frequency range indicated, the results need to be given in a restricted frequency range and the reasons for the restriction(s) need to be clearly reported.

PDF Catalog

PDF Pages PDF Title
83 undefined
118 Annex A (informative) Low-frequency limit and window width
122 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 insulation index
125 Annex C (normative)Template of test report on airborne sound insulation of rail noise barriers and related devices acting on airborne sound propagation
C.1 General
127 C.2 Test setup (example)
129 C.3 Test object and test situation (example)
132 C.4 Results (example)
C.4.1 Part 1 – Results for ‘element’ in tabular form
133 C.4.2 Part 2 – Results for ‘element’ in graphic form
134 C.4.3 Part 3 – Results for ‘post’ in tabular form
135 C.4.4 Part 4 – Results for ‘post’ in graphic form
C.4.5 Uncertainty (example)
138 Annex D (informative)Indoor measurements for product qualification
D.1 General
D.2 Parasitic reflections
D.3 Reverberation time of the room

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BS EN 16272-6:2023 - TC
$258.26