1 - AS 1217.3-1985 ACOUSTICS - DETERMINATION OF SOUND POWER LEVELS OF NOISE SOURCES - PRECISION METHODS FOR DISCRETE-FREQUENCY A
4 - PREFACE
4 - CONTENTS
5 - FOREWORD
6 - SYNOPSIS
7 - SECTION 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 FIELD OF APPLICATION.
7 - 1.3 REFERENCED DOCUMENTS.
7 - 1.4 MEASUREMENT UNCERTAINTY.
7 - 1.5 PRINCIPAL REQUIREMENTS.
7 - 1.6 OTHER REQUIREMENTS.
8 - SECTION 2. DETERMINATION OF THE SIGNIFICANCE OF DISCRETE-FREQUENCY COMPONENTS AND NARROW BANDS OF NOISE
8 - 2.1 GENERAL.
8 - 2.2 QUALITATIVE PROCEDURE.
8 - 2.3 ESTIMATE OF STANDARD DEVIATION.
9 - SECTION 3. NUMBER OF MICROPHONE POSITIONS AND SOURCE LOCATIONS
9 - 3.1 GENERAL.
9 - 3.2 COMPUTATIONAL PROCEDURES.
11 - APPENDIX A - ALTERNATIVE QUALIFICATION PROCEDURE FOR THE MEASUREMENT OF DISCRETE- FREQUENCY COMPONENTS
11 - A1 INTRODUCTION.
11 - A2 INSTRUMENTATION.
11 - A3 LOUDSPEAKER TEST.
11 - A4 ROOM TEST.
11 - A5 COMPUTATIONAL PROCEDURE.
13 - A6 QUALIFICATION.
13 - A7 MULTIPLE SOURCE LOCATIONS.
14 - APPENDIX B - GUIDELINES FOR THE DESIGN OF ROTATING DIFFUSER