Classic Trolley BSTR31

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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) 36.7
Exterior Ambient Noise Level dB(A) 55.3
Microphone Height During Testing(in) 45
Measurement Location Measured Sound Level dB(A)
Driver's Seat 49.0
Front Passenger Seats 49.5
In Line with Front Speaker 49.6
In Line with Middle Speaker 50.8
In Line with Rear Speaker 51.8
Rear Passenger Seats 51.2
Final Sound Level Meter Calibration checked by B.L.
Comments
All readings taken in the center aisle.