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1、 ANSI/ASA S12.43-1997 (Formerly ANSI S12.43-1997) AMERICAN NATIONAL STANDARD Methods for Measurement of Sound Emitted by Machinery and Equipment at Workstations and Other Specified Positions Accredited Standards Committee S12, Noise Standards Secretariat Acoustical Society of America 35 Pinelawn Roa
2、d, Suite 114 E Melville, NY 11747-3177 ANSI/ASA S12.43-1997 (Formerly ANSI S12.43-1997) Reaffirmed by ANSI July 17, 2002 Reaffirmed by ANSI September 11, 2007 Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for
3、 Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- The American National 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 internation
4、al standards. The Acoustical Society of America (ASA) is an organization of scientists and engineers formed in 1929 to increase and diffuse the knowledge of acoustics and to promote its practical applications. Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IH
5、S Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- ANSI/ASA S12.43-1997 (Formerly ANSI S12.43-1997) AMERICAN NATIONAL STANDARD Methods for Measurement of Sound Emitted by Machinery and Equipment at
6、 Workstations and Other Specified Positions Secretariat Acoustical Society of America Approved 27 January 1997 American National Standards Institute, Inc. Abstract This Standard provides three methods to measure sound pressure levels from all types of machinery and equipment at workstations and othe
7、r specified positions. The first method applies to measurements in an essentially free field over a reflecting plane. These sound pressure levels are, in general, equal to or lower than those that would occur when the machine is operated in its normal surroundings as the effects of background noise
8、or reflections from surfaces other than the mounting surface are excluded. The second method applies to measurements in normal operating environments where the effects of background noise and reflections from surfaces surrounding the machine are accounted for in the measurements. The third method is
9、 a survey method of measurement for sound sources operating in their normal environments when less- accurate measurements are acceptable. Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 2
10、0:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted witho
11、ut license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society o
12、f America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA License
13、e=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for
14、Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networ
15、king permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright
16、Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under lice
17、nse with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spi
18、ller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo re
19、production or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from
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21、ed by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/
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24、ithout license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Socie
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28、tworking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyri
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31、=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTN
32、o reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license f
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36、7/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Acoustical Society of America Provided by IHS under license with ASA Licensee=IHS Employees/1111111001, User=Spiller, Kevin Not for Resale, 10/07/2007 20:23:55 MDTNo reproduction or networking permitted without license from IHS -,-,-