42.5-BRT.01

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Exterior Noise Test

Accelerating from Standstill

Date : 2008-04-17
Personnel : BS, TS and SC
Temperature (°F) : 70 Humidity (%) : 24
Wind Speed (mph) : 5 Wind Direction : SSE
Barometric Pressure (in.Hg) : 30.115
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 SC
Initial Sound Level Meter Calibration: true checked by SC
Exterior Ambient Noise Level dB(A): 40.3

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 78.9 1 82.5
2 79.3 2 82.6
3 78.2 3 82.3
4 78.8 4 82.5
5 79.0 5 82.3
Average of two highest actual noise levels = 79.2 dB(A) Average of two highest actual noise levels = 82.6 dB(A)