FORD E-450

GLAVAL BUS/DIV. OF FOREST RIVER Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2012-05-01
Personnel : J.S., T.S. & E.D.
Temperature (°F) : 73 Humidity (%) : 47
Wind Speed (mph) : 9 Wind Direction : W
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 E.D.
Initial Sound Level Meter Calibration: true checked by E.D.
Exterior Ambient Noise Level dB(A): 45.9

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 73.2 1 77.2
2 76.5 2 77.1
3 75.9 3 77.6
4 75.7 4 78.6
5 76.4 5 78.2
Average of two highest actual noise levels = 76.5 dB(A) Average of two highest actual noise levels = 78.4 dB(A)