Mitsubishi PLH-4AAK

26
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL,
BAND CENTER FREQUENCIES, Hz
(0dB=0.0002 µ BAR)
PLH-4AAK(H)
High
NOTCH
Low
41
SPL(dB)
33
LINE
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, (0dB=0.0002 µ BAR)
BAND CENTER FREQUENCIES, Hz
PLH-3AAK(H)
High
Low
34
SPL(dB)
28
LINE
NOTCH
7. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL,
BAND CENTER FREQUENCIES, Hz
(0dB=0.0002 µ BAR)
PLH-6AAK(H)
High
NOTCH
Low
45
SPL(dB)
37
LINE
90
80
70
60
50
40
30
20
10
63 125 250 500 1000 2000 4000 8000
APPROTIMATE
TERESHOLD OF
REARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, (0dB=0.0002 µ BAR)
BAND CENTER FREQUENCIES, Hz
PLH-5AAK(H)
High
NOTCH
Low
43
SPL(dB)
35
LINE
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