<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1990]]> /cms/render/live/es/sites/isoorg/contents/data/standard/00/39/3954.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± 140-1:1990]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 140-1:1990 - Acoustics — Measurement of sound insulation in buildings and of building elements — Part 1: Requirements for laboratories]]> /cms/render/live/es/sites/isoorg/contents/data/standard/00/39/3954.html /cms/render/live/es/sites/isoorg/contents/data/standard/00/39/3954.html 1997-10-09