7. Noise Level
AV08NMSETA
70
60
50
40
30
20
Limit of
audible
continuous
noise
10
63
125
250
Octave band center frequency Hz
AV12NMSETA
70
60
50
40
30
20
Limit of
audible
continuous
noise
10
63
125
250
Octave band center frequency Hz
NC-60
NC-50
NC-40
H
NC-30
NC-20
500
1000 2000 4000 8000
NC-60
NC-50
H
NC-40
NC-30
NC-20
500
1000 2000 4000 8000
AV10NMSETA
70
60
50
40
30
20
Limit of
audible
continuous
noise
10
63
125
250
Octave band center frequency Hz
17
17
NC-60
NC-50
H
NC-40
NC-30
NC-20
500
1000 2000 4000 8000