<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 7566:1987]]> /cms/render/live/es/sites/isoorg/contents/data/standard/01/43/14349.html Normas y proyectos de Ïã¸ÛÁùºÏ²Ê¿ª½± Ïã¸ÛÁùºÏ²Ê¿ª½±.org 60 /modules/isoorg-template/img/iso/favicon/red/favicon1.ico http://www.iso.org/ <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 7566:1987]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 7566:1987 - Acoustics — Standard reference zero for the calibration of pure-tone bone conduction audiometers]]> /cms/render/live/es/sites/isoorg/contents/data/standard/01/43/14349.html /cms/render/live/es/sites/isoorg/contents/data/standard/01/43/14349.html 1995-10-05