Orion VII EPA 10 CNG

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Exterior Noise Test

Accelerating from Standstill

Date : 2011-11-21
Personnel : G.C., T.S. & S.C.
Temperature (°F) : 42 Humidity (%) : 86
Wind Speed (mph) : 10 Wind Direction : NNE
Barometric Pressure (in.Hg) : 30.29
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: true checked by S.C.
Exterior Ambient Noise Level dB(A): 38.8

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 70.0 1 70.8
2 70.3 2 70.7
3 70.6 3 70.7
4 70.7 4 70.3
5 71.8 5 71.7
Average of two highest actual noise levels = 71.3 dB(A) Average of two highest actual noise levels = 71.3 dB(A)