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Machinery for forestry. Noise test code
This noise test code specifies all the information necessary for carrying out efficiently and under standardised conditions the noise emission values of self-propelled forestry machinery.
It is applicable to fellers, bunchers, delimbers, forwarders, log loaders, skidders, processors, harvesters, mulchers and multi-function versions of these machine types, as defined in ISO 6814.
Noise emission characteristics include A-weighted emission sound pressure values at the operator’s station and the A-weighted sound power value.
The determination of these quantities is necessary for the following:
manufacturers to declare the noise emitted;
comparing the noise emitted by machines in the family concerned;
purposes of noise control at the source at the design stage.
NOTE For low-noise design, noise emission values in frequency bands are useful and the basic International Standards ISO 3744 and ISO 11201 can be used for determining noise emission quantities in frequency bands.
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