<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 3744:1994]]> /cms/render/live/en/sites/isoorg/contents/data/standard/00/92/9240.html Ïã¸ÛÁùºÏ²Ê¿ª½± standards and projects Ïã¸ÛÁùºÏ²Ê¿ª½±.org 60 /modules/isoorg-template/img/iso/favicon/red/favicon1.ico http://www.iso.org/ <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 3744:1994]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 3744:1994 - Acoustics — Determination of sound power levels of noise sources using sound pressure — Engineering method in an essentially free field over a reflecting plane]]> /cms/render/live/en/sites/isoorg/contents/data/standard/00/92/9240.html /cms/render/live/en/sites/isoorg/contents/data/standard/00/92/9240.html 2010-09-22