(3) Noise level
AV08NMSETA
O
ctave
band sound pressure level
dB(A
)
Octave band center frequency Hz
8000
4000
2000
1000
500
250
125
63
70
60
50
40
30
20
10
NC-60
NC-50
NC-40
NC-30
NC-20
limit of
audible
continous
noise
H
AV10NMSETA
O
ctave
band sound pressure level
dB(A
)
Octave band center frequency Hz
8000
4000
2000
1000
500
250
125
63
70
60
50
40
30
20
10
NC-60
NC-50
NC-40
NC-30
NC-20
limit of
audible
continous
noise
H
AV12NMSETA
Octave
b
an
d s
oun
d p
ressure
level dB(A)
Octave band center frequency Hz
8000
4000
2000
1000
500
250
125
63
70
60
50
40
30
20
10
NC-60
NC-50
NC-40
NC-30
NC-20
limit of
audible
continous
noise
H
36