101
External static pressure 35Pa
External static pressure 50Pa
External static pressure 70Pa
High
Middle
Low
80
70
60
50
40
30
20
10
0
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
High
Middle
Low
80
70
60
50
40
30
20
10
0
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
High
Middle
Low
80
70
60
50
40
30
20
10
0
63
125
250
500
1000
2000
4000
8000
Approximate
minimum audible
limit on continuous
noise
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
Approximate
minimum audible
limit on continuous
noise
Approximate
minimum audible
limit on continuous
noise
External static pressure 100Pa
External static pressure 150Pa
High
Middle
Low
80
70
60
50
40
30
20
10
0
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
High
Middle
Low
80
70
60
50
40
30
20
10
0
63
125
250
500
1000
2000
4000
8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
Approximate
minimum audible
limit on continuous
noise
Approximate
minimum audible
limit on continuous
noise
PEAD-RP35JA(L)
Measurement location
2m
Ceiling concealed
2m
1.5m
Aux.duct
Noise level at anechoic room (Low-Middle-High) Unit: dB(A)
Model
Exrernal static pressure
PEAD-RP35JA(L)
PEAD-RP50JA(L)
PEAD-RP60JA(L)
PEAD-RP71JA(L)
35Pa
23-26-29
25-30-34
25-28-32
25-29-34
50Pa
23-27-30
26-31-35
25-29-33
26-30-34
70Pa
24-28-31
28-32-36
26-30-34
27-31-35
100Pa
26-29-33
29-33-37
27-31-35
28-32-36
150Pa
29-33-37
31-35-39
29-34-38
30-35-39