AS 2012.2-1990

1 - AS 2012.2-1990 ACOUSTICS - MEASUREMENT OF AIRBORNE NOISE EMITTED BY EARTH-MOVING MACHINERY AND AGRICULTURAL TRACTORS - STATIO
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 3.1 Equivalent continuous A-weighted sound pressure level
6 - 3.2 Earth-moving machine
6 - 3.3 Agricultural tractor
6 - 4 INSTRUMENTATION
6 - 5 TEST ENVIRONMENT
6 - 6 MEASUREMENT OF EQUIVALENT CONTINUOUS A-WEIGHTED SOUND PRESSURE LEVELS
6 - 6.1 Operator
6 - 6.2 Seat adjustment
6 - 6.3 Microphone
6 - 6.4 Positioning of the machine
6 - 6.5 Measurement time
6 - 7 SETTING-UP AND OPERATION OF MACHINERY
6 - 7.1 Safety and operation
7 - 7.2 Setting-up of the machine
7 - 7.3 Machine operating condition
7 - 7.4 Machine operating sequence
7 - 7.5 Cab condition
7 - 8 ACOUSTICAL MEASUREMENTS
7 - 8.1 Number of measurements
7 - 8.2 Determination of result
7 - 9 INFORMATION TO BE RECORDED
7 - 9.1 Machinery under test
7 - 9.2 Acoustic environment
7 - 9.3 Instrumentation
7 - 9.4 Acoustical data
7 - 10 INFORMATION TO BE REPORTED

Describes a method for determining the noise emitted by earth-moving machinery and agricultural tractors at the operator's position in terms of the equivalent continuous A-weighted sound pressure level while the machine is stationary.

This Standard describes a method for determining the noise emitted by earth-moving machinery and agricultural tractors at the operator's position in terms of the equivalent continuous A-weighted sound pressure level while the machine is stationary.This Standard applies to the following types of machinery:(a) Agricultural tractors.(b) Crawlers and wheeled excavators.(c) Crawlers and wheeled loaders.(d) Crawlers and wheeled dozers.(e) Backhoe loaders.(f) Graders.(g) Compactor/rollers.(h) Four-wheel drive skid-steer machines.