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IKARUS USA INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 1990-07-02
Personnel : K.D.
Temperature (°F) : 78 Humidity (%) : 52
Wind Speed (mph) : 8 Wind Direction : WNW
Barometric Pressure (in.Hg) : 28.57
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
Initial Sound Level Meter Calibration: true checked by
Exterior Ambient Noise Level dB(A): 45.6

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 78.0
2 75.2 2 78.0
3 79.0 3 79.0
4 79.0 4 78.5
5 77.2 5 78.8
Average of two highest actual noise levels = 79.0 dB(A) Average of two highest actual noise levels = 78.9 dB(A)