D4500

MOTOR COACH INDUSTRIES Pdf Download PDF Report

Interior Noise Test Data Form

Test Condition 2: 0 to 35 mph Acceleration Test

Date 2004-11-11
Personnel R.C., T.S. and S.C.
Temperature (°F) 55
Humidity (%) 45
Wind Direction sw
Wind Speed (MPH) 8
Barometric Pressure (in.Hg) 30.1
Initial Sound Level Meter Calibration checked by s.c.
Interior Ambient Noise Level dB(A) 34.0
Exterior Ambient Noise Level dB(A) 44.0
Microphone Height During Testing(in) 48
Measurement Location Measured Sound Level dB(A)
Driver's Seat 63.9
Front Passenger Seats 65.5
Middle Passenger Seats 66.9
Rear Passenger Seats 75.8
Final Sound Level Meter Calibration checked by S.C.
Comments
All readings taken in the center aisle.