ASA S12 53 PART 2-1999 American National Standard Acoustics C Determination of sound power levels of noise sources using sound pressure C Engineering methods for small movable sour.pdf

1、 ANSI S12.53/2-1999ISO 3743-2:1994AMERICAN NATIONAL STANDARDAcoustics Determination of sound power levels of noise sources using sound pressure Engineering methods for small, movable sources in reverberant fields -Part 2: Methods for special reverberation test rooms (A Nationally Adopted Internation

2、al Standard)Accredited Standards Committee S12, NoiseStandards SecretariatAcoustical Society of America35 Pinelawn Road, Suite 114 EMelville, NY 11747-3177NAIS STANDARD ANSI S12.53/2-1999ISO 3743-2:1994g53g72g68g73g73g76g85g80g72g71g3g69g92g3g36g49g54g44g3g50g70g87g82g69g72g85g3g25g15g3g21g19g19g23g

3、3Reaffirmed by ANSI October 27, 2009 Reaffirmed by ANSI January 26, 2015 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 international 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.