FORD E-450

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

Exterior Noise Test

Accelerating from Standstill

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 68.8 1 70.7
2 67.4 2 69.6
3 70.2 3 71.6
4 68.3 4 69.3
5 69.2 5 71.0
Average of two highest actual noise levels = 69.7 dB(A) Average of two highest actual noise levels = 71.3 dB(A)