<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½±/TR 140-13:1997]]> /cms/render/live/en/sites/isoorg/contents/data/standard/02/90/29067.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±/TR 140-13:1997]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½±/TR 140-13:1997 - Acoustics — Measurement of sound insulation in buildings and of building elements — Part 13: Guidelines]]> /cms/render/live/en/sites/isoorg/contents/data/standard/02/90/29067.html /cms/render/live/en/sites/isoorg/contents/data/standard/02/90/29067.html 2007-02-08