Metabo KHE 56 Operating Instructions Manual page 13

Typical A-effective perceived sound levels:
L = Sound pressure level
pA
L = Acoustic power level
WA
K , K = Uncertainty (noise level)
pA WA
L = recorded sonic pressure peak in
pA(M)
accordance with 2000/14/EG on
the ear of the user
L = Measured acoustic power level as
WA(M)
per 2000/14/EC
L = Guaranteed acoustic power level
WA(G)
as per 2000/14/EC
During operation the noise level can exceed
85 dB(A).
Wear ear protectors!
Measured values determined in conformity with
EN 60745.
The technical specifications quoted are subject to
tolerances (in compliance with the relevant valid
standards).
13