Model Universal CNG

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

Exterior Noise Test

Stationary

Date : 2010-09-15
Personnel : B.G., T.S., E.D. & E.L.
Temperature (°F) : 64 Humidity (%) : 49
Wind Speed (mph) : 7 Wind Direction : W
Barometric Pressure (in.Hg) : 30.18
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 T.S.
Initial Sound Level Meter Calibration: true checked by T.S.
Exterior Ambient Noise Level dB(A): 40.9

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 850 59.1 59.1
High Idle
Wide Open Throttle 3495 69.6 69.1

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 995 52.4 52.9
High Idle
Wide Open Throttle 3505 60.8 69.0