Home>ASA S12.55-2012 / ISO 3745:2012 (R2019)

ASA S12.55-2012 / ISO 3745:2012 (R2019)

ASA S12.55-2012 / ISO 3745:2012 (R2019) American National Standard Acoustics - Determination of sound power levels of noise sources using sound pressure - Precision methods for anechoic and hemi-anechoic rooms

standard by American National Standards of the Acoustical Society of America, 08/23/2012

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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.

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Published: 08/23/2012 ANSI: ANSI Approved Number of Pages: 88 File Size: 1 file , 1.1 MB