1 - AS 3713-1989 ACOUSTICS-INDUSTRIAL TRUCKS-NOISE MEASUREMENT
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 REFERENCED DOCUMENTS.
6 - SECTION 2. MEASURING EQUIPMENT
6 - 2.1 METERS.
6 - 2.2 FREQUENCY WEIGHTING.
6 - 2.3 TIME WEIGHTING.
6 - 2.4 CALIBRATION.
6 - 2.5 FIELD CHECKS.
6 - 2.6 WIND SCREEN.
6 - 2.7 RECORDS.
7 - SECTION 3. TEST ENVIRONMENT
7 - 3.1 TEST SITE.
7 - 3.1.1 Operator’s position.
7 - 3.1.2 Bystander’s position.
7 - 3.2 METEOROLOGICAL CONDITIONS.
7 - 3.2.1 Air temperature.
7 - 3.2.2 Humidity.
7 - 3.2.3 Wind speed.
7 - 3.2.4 Ambient sound level.
7 - 3.3 PERSONNEL.
8 - SECTION 4. MACHINE CONDITIONS
8 - 4.1 TYPE OF TRUCK.
8 - 4.2 ATTACHED EQUIPMENT.
8 - 4.3 MACHINE TEMPERATURE.
8 - 4.4 ENGINE SPEED.
8 - 4.5 MACHINE OPERATION.
8 - 4.6 CABINS AND ENCLOSURES.
9 - SECTION 5. TEST METHODS
9 - 5.1 TYPES OF TEST.
9 - 5.2 BYSTANDER’S POSITION, DRIVE-BY.
9 - 5.2.1 Test location.
9 - 5.2.2 Microphone location.
9 - 5.2.3 Truck operations.
9 - 5.2.4 Measurements.
9 - 5.2.5 Average drive-by sound pressure level.
9 - 5.3 BYSTANDER’S POSITION, LIFTING MODE.
9 - 5.3.1 Test location.
9 - 5.3.2 Microphone location.
9 - 5.3.3 Truck operation.
10 - 5.3.4 Measurements.
10 - 5.3.5 Average lifting mode sound pressure level.
10 - 5.4 OPERATOR’S POSITION.
10 - 5.4.1 Test location.
10 - 5.4.2 Microphone location.
10 - 5.4.3 Truck operation.
10 - 5.4.4 Measurements.
11 - 5.4.5 Estimated equivalent continuous sound level.
12 - SECTION 6. TEST REPORT
13 - APPENDIX A - BASIS FOR MEASUREMENTS OF SOUND LEVELS AT OPERATOR’S POSITION