SLC 32' CNG

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2002-03-08
Personnel : S.C., B.S., & E.D.
Temperature (°F) : 56 Humidity (%) : 70
Wind Speed (mph) : Wind Direction : Calm
Barometric Pressure (in.Hg) : 30.33
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): 46.0

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 77.6 1 84.4
2 78.7 2 83.3
3 78.7 3 86.6
4 79.1 4 85.1
5 78.5 5 85.8
Average of two highest actual noise levels = 78.9 dB(A) Average of two highest actual noise levels = 86.2 dB(A)