G4500

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Exterior Noise Test

Stationary

Date : 2009-08-24
Personnel : B.S., T.S. & S.C.
Temperature (°F) : 71 Humidity (%) : 64
Wind Speed (mph) : 5 Wind Direction : SW
Barometric Pressure (in.Hg) : 30.2
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 S.C.
Initial Sound Level Meter Calibration: true checked by S.C.
Exterior Ambient Noise Level dB(A): 37.8

Accessories and Air Conditioning ON
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 687 57.1 59.9
High Idle 1448 60.8 63.8
Wide Open Throttle 3434 72.9 73.3

Accessories and Air Conditioning OFF
Throttle Position Engine RPM Curb (Right) Side dB(A) Street (Left) Side dB(A)
Measured Measured
Low Idle 690 51.3 52.6
High Idle 1452 56.9 57.4
Wide Open Throttle 3434 72.2 72.7