<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 6189:1983]]> /cms/render/live/en/sites/isoorg/contents/data/standard/01/24/12448.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± 6189:1983]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 6189:1983 - Acoustics — Pure tone air conduction threshold audiometry for hearing conservation purposes]]> /cms/render/live/en/sites/isoorg/contents/data/standard/01/24/12448.html /cms/render/live/en/sites/isoorg/contents/data/standard/01/24/12448.html 2010-10-21