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ANNEX IIIU.K.METHOD OF MEASUREMENT OF AIRBORNE NOISE EMITTED BY EQUIPMENT FOR USE OUTDOORS

PART BNOISE TEST CODES FOR SPECIFIC EQUIPMENT

6.CHAIN SAWS, PORTABLEU.K.

Operating conditions during testU.K.
Test under load/Test free of loadU.K.

Full load sawing wood/engine at maximum revolution without load

(a)

combustion-engine driven: ISO 9207:1995 points 6.3 and 6.4

(b)

electric-motor operated: a test corresponding to ISO 9207:1995 point 6.3 and a test with the motor at maximum revolution without load

Period(s) of observation/determination of resulting sound power level if more than one operating condition is usedU.K.

ISO 9207:1995 points 6.3 and 6.4

The resulting sound power level L WA is calculated by:

where L W1 and L W2 are the average sound power levels of the two different modes of operation defined above