BB365

THOMAS BUILT

Exterior Noise Test

Accelerating from Standstill

Date	:	1995-02-20
Personnel	:	R.L., B.R., & R.H.
Temperature (°F)	:	51	Humidity (%)	:	60
Wind Speed (mph)	:	9	Wind Direction	:	WSW
Barometric Pressure (in.Hg)	:	29.7
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by R.L.
Initial Sound Level Meter Calibration: true checked by R.L.
Exterior Ambient Noise Level dB(A): 40.1

Accelerating from Constant Speed Curb (Right) Side		Accelerating from Constant Speed Street (Left) Side
Run #	Measured Noise Level dB(A)	Run #	Measured Noise Level dB(A)
1	75.3	1	74.7
2	75.0	2	74.6
3	75.5	3	74.3
4	74.8	4	74.4
5	75.3	5	75.2
Average of two highest actual noise levels = 75.4 dB(A)		Average of two highest actual noise levels = 75.0 dB(A)

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Noise

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