9201

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1992-11-27
Personnel : B.R., & B.S.
Temperature (°F) : 38 Humidity (%) : 85
Wind Speed (mph) : 5 Wind Direction : NNW
Barometric Pressure (in.Hg) : 30.07
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 B.R.
Initial Sound Level Meter Calibration: false checked by B.R.
Exterior Ambient Noise Level dB(A): 39.9

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 74.5 1 72.8
2 74.6 2 73.1
3 74.6 3 73.3
4 74.4 4 73.0
5 74.8 5 73.1
Average of two highest actual noise levels = 74.7 dB(A) Average of two highest actual noise levels = 73.2 dB(A)