1 - AS 1948-1987 ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE ON BOARD VESSELS AND OFFSHORE PLATFORMS
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 APPLICATION.
5 - 3 REFERENCED DOCUMENTS.
5 - 4 DEFINITIONS.
5 - 4.1 Vessel
5 - 4.2 Offshore platform
5 - 4.3 Prototype and acceptance tests
5 - 4.4 Monitoring tests
5 - 5 NATURE OF TESTS.
5 - 6 MEASUREMENTS.
5 - 6.1 General.
5 - 6.2 Precision.
6 - 7 RECOMMENDED NOISE LEVELS.
6 - 8 EQUIPMENT.
6 - 8.1 Sound level meter.
6 - 8.2 Alternative measuring equipment.
6 - 8.3 Measurement of noise spectra.
6 - 9 ACOUSTIC ENVIRONMENT.
6 - 9.1 Extraneous (background) noise sources.
6 - 9.2 Sea state and meteorological conditions.
6 - 9.3 Depth of water.
6 - 10 TEST COURSE.
6 - 11 OPERATING CONDITIONS FOR VESSELS AND PLATFORMS DURING THE TEST.
6 - 11.1 General.
6 - 11.2 Loading.
7 - 11.3 Main propulsion machinery for self-propelled vessels only.
7 - 11.4 Propeller setting.
7 - 11.5 Auxiliary machinery.
7 - 11.6 Air-conditioning and ventilating systems.
7 - 11.7 Doors and windows.
7 - 11.8 Furnishings.
7 - 12 MICROPHONE POSITIONS.
7 - 12.1 General.
7 - 12.2 Living quarters.
7 - 12.3 Engine room.
7 - 12.4 Control stations.
7 - 12.5 Other unusually noisy locations.
7 - 12.6 Deck.
7 - 12.7 Accessible intake and exhaust openings.
7 - 12.8 Bridge wings.
9 - APPENDIX A - SUGGESTED TABLE FOR RECORDING SOUND LEVEL READINGS AT DIFFERENT MICROPHONE POSITIONS
10 - APPENDIX B - FORMAT FOR NOISE SURVEY REPORT
10 - B1 SHIP PARTICULARS.
10 - B2 MACHINERY PARTICULARS.
11 - B3 MEASURING INSTRUMENTATION.
11 - B4 CONDITIONS DURING MEASUREMENT.