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This American National Standard specifies methods for measuring the sound pressure levels on ameasurement surface enveloping a noise source (machinery or equipment) in an anechoic room or ahemi-anechoic room. The sound power level (or, in the case of impulsive or transient noise emission,the sound energy level) produced by the noise source, in frequency bands of width one-third octave orwith frequency weighting A applied, is calculated using those measurements, including corrections toallow for any differences between the meteorological conditions at the time and place of the test andthose corresponding to a reference characteristic acoustic impedance.
Product Details
- Published:
- 08/23/2012
- ANSI:
- ANSI Approved
- Number of Pages:
- 88
- File Size:
- 1 file , 1.1 MB
