OC193-19
8. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB re 0.002 MICR
O B
A
R
BAND CENTER FREQUENCIES, Hz
PCH24EK
1
PCH30EK
1
Hi
Lo
NOTCH
50
43
SPL(dB)
LINE
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB re 0.002 MICR
O B
A
R
BAND CENTER FREQUENCIES, Hz
PCH36EK
1
Hi
Lo
NOTCH
51
45
SPL(dB)
LINE
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE B
AND SOUND PRESSURE LEVEL,
dB re 0.002 MICR
O B
A
R
BAND CENTER FREQUENCIES, Hz
PCH42EK
1
Hi
Lo
NOTCH
51
45
SPL(dB)
LINE
1m
1m
unit
about 1.4m
MICROPHONE
ceiling
Ambient temperature 27˚C
Test conditions are based on JIS Z8731
Содержание Mr.Slim PLH42AK
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Страница 23: ...OC193 21 Indoor unit PCH36 42EK1 Unit inch ...
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