Propane Vision

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Exterior Noise Test

Accelerating from Standstill

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): 40.3

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 70.2 1 73.3
2 70.4 2 74.3
3 71.3 3 74.7
4 71.3 4 74.6
5 71.1 5 74.3
Average of two highest actual noise levels = 71.3 dB(A) Average of two highest actual noise levels = 74.7 dB(A)