ASA S12 44-1997 American National Standard Methods for Calculation of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions from Sound Power Level《.pdf

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1、 ANSI/ASA S12.44-1997 (Formerly ANSI S12.44-1997) AMERICAN NATIONAL STANDARDMethods for Calculation of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions from Sound Power LevelAccredited Standards Committee S12, NoiseStandards Secretariat Acoustical Society of Ame

2、rica35 Pinelawn Road, Suite 114 EMelville, NY 11747-3177ANSI/ASA S12.44-1997 (Formerly ANSI S12.44-1997)Reaffirmed by ANSI July 17, 2002 Reaffirmed by ANSI September 12, 2007 Reaffirmed by ANSI July 17, 2002 Reaffirmed by ANSI September 12, 2007 Reaffirmed by ANSI September 5, 2012 The American Nati

3、onal Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U.S.A. for information on national and international standards. The Acoustical Society of America (ASA) is an organization of scientists and engineers formed in 1929 to i

4、ncrease and diffuse the knowledge of acoustics and to promote its practical applications. ANSI/ASA S12.44-1997 (Formerly ANSI S12.44-1997) AMERICAN NATIONAL STANDARD Methods for Calculation of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions from Sound Power Lev

5、el Secretariat Acoustical Society of America Approved 27 January 1997 American National Standards Institute, Inc. Abstract This Standard provides a method for determining emission sound pressure levels from the sound power level produced by all types of machinery and equipment at workstations and other specified locations. These sound pressure levels are, in general, less than those that would be measured when the machinery or equipment is operating in its normal surroundings where the environment may influence the measurement of an emission sound pressure level.