19
18
19
OCH710
4
NOISE CRITERION CURVES
NOISE CRITERION CURVES
10
20
30
40
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
Approximate minimum
audible limit on
continuous noise
PKFY-P10VLM-(E/ET)
NC-60
NC-50
NC-40
NC-20
NC-30
NC-70
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB
（
0dB=0.0002μbar)
10
20
30
40
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
Approximate minimum
audible limit on
continuous noise
PKFY-P20VLM-(E/ET/TH)
NC-60
NC-50
NC-40
NC-20
NC-30
NC-70
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB
（
0dB=0.0002μbar)
10
20
30
40
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
Approximate minimum
audible limit on
continuous noise
PKFY-P25VLM-(E/ET/TH)
NC-60
NC-50
NC-40
NC-20
NC-30
NC-70
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB
（
0dB=0.0002μbar)
10
20
30
40
50
60
70
80
90
63
125
250
500
1000
2000
4000
8000
Approximate minimum
audible limit on
continuous noise
PKFY-P15VLM-(E/ET/TH)
NC-60
NC-50
NC-40
NC-20
NC-30
NC-70
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB
（
0dB=0.0002μbar)
Содержание CITY MULTI PKFY-P15VLM-DA
Страница 23: ...23 OCH710 23 φ PKFY P40VLM E ET DA TH TH PKFY P50VLM E ET DA TH TH Unit mm ...
Страница 37: ...37 OCH710 ...
