MB55

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Exterior Noise Test

Accelerating from Standstill

Date : 2002-07-23
Personnel : E.D., B.S. and M.H.
Temperature (°F) : 84 Humidity (%) : 69
Wind Speed (mph) : 3 Wind Direction : sw
Barometric Pressure (in.Hg) : 30.03
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): 43.5

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 78.4 1 80.2
2 78.8 2 79.6
3 78.7 3 79.5
4 78.6 4 79.9
5 78.8 5 80.0
Average of two highest actual noise levels = 78.8 dB(A) Average of two highest actual noise levels = 80.1 dB(A)