Table of Contents

Foreword <br>Introduction <br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Principle<br>5 Measuring instrumentation<br>6 Installation and operation of source under test <br>7 Determination of the vibratory velocity on the <br>&nbsp;&nbsp;&nbsp;vibrating measurement surface<br>8 Determination of the machinery specific frequency <br>&nbsp;&nbsp;&nbsp;band radiation factor <br>9 Calculations<br>10 Measurement uncertainty <br>11 Information to be recorded <br>Annex A (informative) - Use of the vibration transducer<br>Annex B (normative) - Procedures for calculating A-weighted<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sound power levels from octave band or <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;one-third-octave band levels<br>Annex C (informative) - Recommendations concerning the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;frequency bands of interest<br>Annex D (informative) - Determination of the vibratory<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;velocity level from the vibratory acceleration<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;level <br>Annex E (informative) - Guidance on the development of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;information on measurement uncertainty<br>Bibliography

Abstract

Provides basic requirements for a reproducible method for the determination of the sound power level of the noise emitted by machinery or equipment by using surface vibration measurements, together with the knowledge of the machinery specific sound radiation factor in the frequency bands.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 43
Supersedes	ISO TR 7849 : 1987