
6-3
SOUND LEVEL CHARACTERISTICS
SM DEL60Hz 1-E.0 GB
DCR 50 60Hz Cooling
DCR 50 60Hz Heating
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
-70NC
-60NC
-50NC
-40NC
-30NC
-20NC
BAND CENTER FREQUENCIES, Hz
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR