MB45

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2001-09-11
Personnel : S.C. & B.S.
Temperature (°F) : 70 Humidity (%) : 70
Wind Speed (mph) : 4 Wind Direction : W
Barometric Pressure (in.Hg) : 30.12
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: false checked by S.C.
Exterior Ambient Noise Level dB(A): 44.3

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 70.3 1 73.8
2 70.3 2 70.6
3 70.9 3 71.7
4 70.4 4 72.0
5 70.6 5 71.7
Average of two highest actual noise levels = 70.8 dB(A) Average of two highest actual noise levels = 72.9 dB(A)