QBRE CNG

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Exterior Noise Test

Accelerating from Standstill

Date : 1996-10-02
Personnel : B.L., S.C., & R.H.
Temperature (°F) : 52 Humidity (%) : 60
Wind Speed (mph) : 7 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.05
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 R.L.L.
Initial Sound Level Meter Calibration: true checked by R.L.L.
Exterior Ambient Noise Level dB(A): 47.6

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 75.7 1 76.4
2 76.0 2 75.8
3 75.9 3 76.2
4 75.9 4 74.1
5 76.2 5 74.3
Average of two highest actual noise levels = 76.1 dB(A) Average of two highest actual noise levels = 76.3 dB(A)