Ford F550

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Interior Noise Test Data Form

Test Condition 1: 80 dB(A) Stationary White Noise

Date 2010-03-31
Personnel T.S., E.D., B.L. & E.L.
Temperature (°F) 38
Humidity (%) 63
Wind Direction WNW
Wind Speed (MPH) 3
Barometric Pressure (in.Hg) 29.94
Initial Sound Level Meter Calibration checked by S.C.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 48.2
Microphone Height During Testing(in) 48
Measurement Location Measured Sound Level dB(A)
Driver's Seat 47.1
Front Passenger Seats 50.5
In Line with Front Speaker 50.0
In Line with Middle Speaker 48.9
In Line with Rear Speaker 49.8
Rear Passenger Seats 50.5
Final Sound Level Meter Calibration checked by T.S.
<p>All readings taken in the center aisle.</p>