6-4
S
OUND LEVEL CH
A
R
A
CTERI
S
TIC
S
S
M LE
X
DCI 1-E.1 GB
DCI 50 Cooling
DCI 50 Heating
DCI 60 Cooling
DCI 60 Heating
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-
3
0
NC-20
OCT
A
VE
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-
3
0
NC-20
OCT
A
VE
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-
3
0
NC-20
OCT
A
VE
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-70
NC-60
NC-50
NC-40
NC-
3
0
NC-20
OCT
A
VE
BAND
SOUND
PRESSURE
LEVEL,
dB
re
0.002
MICRO
BAR
CONTENTS