M120
8.4Sounddata
CorrectionKokdBatISO-bandcentrefrequency,Hz
Noisepath
dB(A)*Lwt631252505001000200040008000
A6676-5-5-6-11-28-24-27-27
B6268-14-7-3-8-16-13-17-22
C6066-13-10-3-8-14-13-18-26
D5657-22-18-11-3-7-7-16-23
Table8.3Sounddata
SYMBOLS:
L
wt
=TotalnoiseleveldB(rel.10
-12
W)
L
w
=NoisepowerlevelinoctavebanddB(rel.10
-12
W)
K
ok
=CorrectionforcalculatingL
w
(L
w
=L
wt
+K
ok
)
dB(A)=Ratednoiselevelat100m
2
roomabsorption
A=Noisepathtodryairsystem
B=Noisepathtothesurroundings.Freeblowing
C=Noisepathtothesurroundings.Dryairduct,length1m
D=Noisepathtothesurroundings.Ductconnected.
*Equivalentsoundabsorptionarea,10m
2
21Technicalspecication190TGB-1008-H1402