C 40 LF

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Exterior Noise Test

Accelerating from Standstill

Date : 2003-01-14
Personnel : S.C., T.S. & B.S.
Temperature (°F) : 30 Humidity (%) : 58
Wind Speed (mph) : 6 Wind Direction : W
Barometric Pressure (in.Hg) : 30.06
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by S.C.
Initial Sound Level Meter Calibration: true checked by S.C.
Exterior Ambient Noise Level dB(A): 42.1

Accelerating from Constant Speed
Curb (Right) Side
Accelerating from Constant Speed
Street (Left) Side
Run # Measured Noise Level dB(A) Run # Measured Noise Level dB(A)
1 74.6 1 75.3
2 75.2 2 76.4
3 74.8 3 75.5
4 74.9 4 75.8
5 75.1 5 75.9
Average of two highest actual noise levels = 75.2 dB(A) Average of two highest actual noise levels = 76.2 dB(A)