F-53

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Interior Noise Test Data Form

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

Date 1999-01-28
Personnel B.L. and S.C.
Temperature (°F) 59
Humidity (%) 60
Wind Direction Calm
Wind Speed (MPH) 0
Barometric Pressure (in.Hg) 30.0
Initial Sound Level Meter Calibration checked by B.L.
Interior Ambient Noise Level dB(A) 42.2
Exterior Ambient Noise Level dB(A) 52.1
Microphone Height During Testing(in) 45
Measurement Location Measured Sound Level dB(A)
Driver's Seat 52.5
Front Passenger Seats 54.0
In Line with Front Speaker 54.8
In Line with Middle Speaker 55.4
In Line with Rear Speaker 60.3
Rear Passenger Seats 58.0
Final Sound Level Meter Calibration checked by B.L.
Comments
All readings taken in the center aisle. The rear section of the trolley is