Aero Elite Ford 550 Super Duty Chassis-Diesel Engine

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Interior Noise Test Data Form

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

Date 2011-10-18
Personnel E.D. & E.L.
Temperature (°F) 58
Humidity (%) 34
Wind Direction SW
Wind Speed (MPH) 4
Barometric Pressure (in.Hg) 29.87
Initial Sound Level Meter Calibration checked by E.D.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 51.9
Microphone Height During Testing(in) 29
Measurement Location Measured Sound Level dB(A)
Driver's Seat 48.6
Front Passenger Seats 47.0
In Line with Front Speaker 49.8
In Line with Middle Speaker 47.5
In Line with Rear Speaker 47.9
Rear Passenger Seats 46.6
Final Sound Level Meter Calibration checked by E.D.
Comments
<p>All readings taken in the center aisle.</p>