Standard
Track updates
AS 3534-1988
[Current]Acoustics — Methods for measurement of airborne noise emitted by powered lawnmowers, edge and brush cutters and string trimmers
Specifies a method for the measurement of the sound level emitted by powered lawnmowers, including ride-on lawnmowers, and by edge and brush cutters and string trimmers, and of the noise heard at the operator's position and at a specified bystander's position. It applies to machines powered by electricity, including batteries, and by internal combustion engine. The Standard includes the method of calculation of sound power level.
Published: 05/04/1988
Pages: 9
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE
2 APPLICATION
3 REFERENCED DOCUMENTS
4 DEFINITIONS
5 MEASURING EQUIPMENT
5.1 Sound level meter
5.2 Spectrum analysis
6 QUANTITIES TO BE MEASURED
6.1 General
6.2 Spectral analysis
6.3 Noise exposure at operator’s position
6.4 Instrumentation for measuring the operating conditions of machines
7 TEST ENVIRONMENT
7.1 Test site
7.2 Personnel position
7.3 Test pad
7.4 Air temperature
7.5 Climatic conditions
7.6 Meteorological effects
7.7 Ambient sound levels
8 LOCATION AND ORIENTATION OF MICROPHONE
8.1 At the operator’s position
8.2 Microphone positions for purpose of sound level determination
9 SOUND MEASUREMENTS
9.1 General
9.2 Equipment for noise measurement at the operator position
9.3 Measurement of sound pressure levels
9.4 Sound level at the operator’s position
9.5 Noise exposure at the operator’s position
9.6 Noise level at the bystander’s position
10 OPERATION CONDITIONS FOR MACHINES
10.1 Selection and adjustment of mowing systems and attachments
10.2 Preconditioning of machines
10.3 Operation of engines
10.4 Operation of electric motors
10.4.1 Motors supplied from mains
10.4.2 Motors supplied from batteries
10.5 Operation and location of machine
11 CALCULATIONS
11.1 Calculation of surface sound pressure level (LpA)
11.2 Calculation of sound power level (LWA)
12 INFORMATION TO BE RECORDED
12.1 General
12.2 Purpose of measurements
12.3 Description of the machine under test
12.4 Supply, fuel and lubrication for operation
12.5 Preconditioning of machine
12.6 Operating conditions of machine
12.7 Test site
12.8 Instrumentation
12.9 Acoustic data
12.10 General data
APPENDIX A
A1 GENERAL
A2 TEST PAD MATERIALS
A3 TEST PAD CONSTRUCTION
APPENDIX B
Cited references in this standard
[Superseded]
Octave, half octave and one-third octave band pass filters intended for the analysis of sound and vibrations
[Superseded]
Amendment No 3 to AS 3156-1992 Approval and test specification — Electric lawnmowers
AS 2659
Guide to the use of sound measuring equipment Part 2: Portable equipment for integration of sound signals (AS 2659.2)
AS 2400
SAA Packaging Code, Part 1: Glossary of packaging terms (AS 2400.1)
Content history
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