D60LF

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1998-07-13
Personnel : B.L., E.L., and R.H.
Temperature (°F) : 75 Humidity (%) : 65
Wind Speed (mph) : calm Wind Direction : calm
Barometric Pressure (in.Hg) : 30.12
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: false checked by R.L.L.
Exterior Ambient Noise Level dB(A): 43.7

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 75.1 1 78.5
2 75.2 2 78.5
3 75.5 3 79.6
4 75.0 4 79.4
5 74.9 5 78.5
Average of two highest actual noise levels = 75.4 dB(A) Average of two highest actual noise levels = 79.5 dB(A)