416.03

IKARUS USA, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 1992-08-03
Personnel : B.L., B.R. & R.H.
Temperature (°F) : 74 Humidity (%) : 53
Wind Speed (mph) : Wind Direction : CALM
Barometric Pressure (in.Hg) : 30.01
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 B.L.
Initial Sound Level Meter Calibration: false checked by B.L.
Exterior Ambient Noise Level dB(A): 47.9

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 77.9
2 74.6 2 76.9
3 3 76.8
4 4
5 5
Average of two highest actual noise levels = 74.6 dB(A) Average of two highest actual noise levels = 77.4 dB(A)