Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Symbols and abbreviated terms<br>5 Instrumentation<br>6 Acoustic environment, meteorological conditions,<br>&nbsp;&nbsp;and background noise<br>7 Test procedures<br>8 Test report<br>Annex A (informative) - Information on development<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of ISO 16254<br>Annex B (informative) - Development of frequency shift<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;information<br>Annex C (informative) - Relevance of objective acoustic<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;data to pedestrian safety<br>Annex D (informative) - Measurement uncertainty - Framework<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for analysis according to ISO/IEC Guide 98-3 (GUM)<br>Annex E (normative) - Testing requirements for reduced<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;uncertainty<br>Annex F (informative) - Frequency identification of tones<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;using the fast Fourier transformation<br>Annex G (informative) - Flowchart of the procedure for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;measurement and reporting of background noise<br>Annex H (informative) - Flowchart for the procedure to correct<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A-weighted sound pressure levels<br>Annex I (informative) - Flowchart for the procedure to report<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A-weighted one-third-octave-band sound pressure levels<br>Bibliography

Abstract

Defines an engineering method for measuring the sound emitted by M and N category road vehicles at standstill and low speed operating conditions.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	EH/1/2
Supersedes	13/30266712 DC : 0