Table of Contents

1 -  AS 2221, PART 1-1979 METHODS FOR MEASUREMENT OF AIRBORNE SOUND EMITTED BY COMPRESSOR UNITS INCLUDING PRIMEMOVERS AND BY PNEU
4 -  PREFACE
4 -  CONTENTS
5 -  1 SCOPE.
5 -  2 APPLICATION.
5 -  3 DEFINITION.
5 -  4 INSTRUMENTATION.
5 -  4.1 Sound Level Meter.
5 -  4.2 Alternative Systems.
5 -  4.3 Spectrum Analysis.
5 -  4.4 Calibration.
5 -  5 OPERATING CONDITIONS.
5 -  5.1 Condition of Machine.
5 -  5.2 Measurement Conditions.
5 -  6 TEST ENVIRONMENT.
6 -  7 PROCEDURE FOR SOUND MEASUREMENT.
6 -  7.1 Background Sound.
6 -  7.2 Machine Sound.
6 -  8 CALCULATION OF MEAN SOUND LEVEL AND MEAN BAND PRESSURE LEVEL.
7 -  9 TEST REPORT.
8 -  APPENDIX A - BEAUFORT WIND SCALE
9 -  APPENDIX B - SOUND LEVEL TEST REPORT FOR COMPRESSOR

Abstract

Describes a method for determining mean sound level and mean band pressure level of airborne sound. It is an engineering method which requires a controlled environment for repeatable results.

Scope

This standard describes a method for determining the mean sound level and mean band pressure level of the airborne sound emitted by compressor/ primemover units intended for outdoor use. This is an engineering method in which care is required to establish a controlled environment in order to achieve repeatable results.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
Pages
ISBN
Committee	AV-006
Supersedes	DR 77097