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Exterior Noise Test

Accelerating from Standstill

Date : 2009-01-23
Personnel : P.D. T.S. & S.C.
Temperature (°F) : 44 Humidity (%) : 51
Wind Speed (mph) : 8 Wind Direction : SSW
Barometric Pressure (in.Hg) : 29.81
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): 41.8

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 72.1 1 70.0
2 72.9 2 70.4
3 72.7 3 70.2
4 72.9 4 70.4
5 73.1 5 70.3
Average of two highest actual noise levels = 73.0 dB(A) Average of two highest actual noise levels = 70.4 dB(A)