844 CNG

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2002-01-14
Personnel : S.C., B.S. & M.H.
Temperature (°F) : 41 Humidity (%) : 74
Wind Speed (mph) : 5 Wind Direction : NE
Barometric Pressure (in.Hg) : 30.0
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): 51.6

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 77.7 1 78.0
2 78.3 2 78.5
3 78.4 3 78.1
4 78.7 4 77.8
5 78.2 5 78.1
Average of two highest actual noise levels = 78.6 dB(A) Average of two highest actual noise levels = 78.3 dB(A)