2.4 NOISE TEST INFORMATION
Machine Först ST6P Woodchipper
Notes Tested chipping 50 x 50mm pine or an equivalent type of timber 4m in length.
Noise levels above 91dB will be experienced at the working position and within a metre
radius. Operators and personnel within a metre radius must wear appropriate ear
protection at all times while machine is in operation to prevent the risk of hearing
damage.
Figure 16 - Test results
A-weighted emission sound pressure (beside operator’s ear) LpA = 106.3 Peak C-
weighted instantaneous sound pressure (beside operator’s ear) LCpeak = 128.4 dB(C).
Results at 10 metre radius are calculated.
Guaranteed sound power: 118dB(A)
As required by Forestry machinery - Wood chippers – Safety BS EN 13525 and in line
with Machinery Directive 2006/42/EC.
Chapter 2: Safety instructions
Redwood Global Ltd - ST6P
Operator and Maintenance Manual
41 12-00-001 v4.0