BS ISO 6393:2008

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Instrumentation
5 Test environment
   5.1 General
   5.2 Test site and environmental correction, K[2A]
   5.3 Test site
   5.4 Background noise correction, K[1A]
   5.5 Climatic conditions
6 Measurement of time-averaged A-weighted sound
   pressure levels
   6.1 Size of measurement surface
   6.2 Microphone positions on the hemispherical
        measurement surface
   6.3 Positioning the machine
   6.4 Measurement time
7 Setting-up and operation of machinery
   7.1 General
   7.2 Engine speed
   7.3 Fan speed
8 Determination of A-weighted sound power level
   8.1 Measurement procedure
   8.2 Calculation of A-weighted sound power level
   8.3 Determination of measurement result
9 Information to be recorded
10 Information to be reported
   10.1 Information
   10.2 Declaration of sound emission data and uncertainty
Annex A (normative) - Basic length, l, and additional
        machine specifications
Annex B (normative) - Declaration of sound emission data
        and uncertainty
Bibliography

Provides a method for determining the noise emitted to the environment by earth-moving machinery, measured in terms of the A-weighted sound power level while the machine is stationary with the engine operating at the rated speed under no-load conditions.

This International Standard specifies a method for determining the noise emitted to the environment by earth-moving machinery, measured in terms of the A-weighted sound power level while the machine is stationary and with the engine operating at the rated speed under no-load conditions.

It is applicable to earth-moving machinery as specified in AnnexA and as defined in ISO6165.