Propane Vision

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2013-06-20
Personnel : S.R., T.S. & E.D.
Temperature (°F) : 68 Humidity (%) : 70
Wind Speed (mph) : 2 Wind Direction : W
Barometric Pressure (in.Hg) : 28.95
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.R.
Initial Sound Level Meter Calibration: true checked by S.R.
Exterior Ambient Noise Level dB(A): 38.3

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 74.6 1 78.1
2 72.4 2 77.6
3 74.2 3 77.4
4 74.1 4 77.3
5 74.6 5 77.7
Average of two highest actual noise levels = 74.6 dB(A) Average of two highest actual noise levels = 77.9 dB(A)