Table of Contents

European foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Symbols and abbreviations<br>4 Test arrangement<br>5 Test procedure and evaluation<br>6 Test report<br>Annex A (informative) - Guidance note on the use of the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;single number rating DL[alpha,NRD]<br>Annex B (informative) - Measurement uncertainty<br>Annex C (informative) - Example test report<br>Bibliography

Abstract

Defines the laboratory method for measuring the sound absorption performance of road traffic noise reducing devices in reverberant conditions. Also covers the assessment of the intrinsic sound absorption performance of devices that can reasonably be assembled inside the testing facility described in EN ISO 354.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	B/509/6
Supersedes	95/100426 DC : DRAFT FEB 1995 15/30321297 DC : 0 10/30218976 DC : DRAFT JUNE 2010