<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 16890-3:2024]]> /cms/render/live/en/sites/isoorg/contents/data/standard/08/30/83047.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± 16890-3:2024]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 16890-3:2024 - Air filters for general ventilation — Part 3: Determination of the gravimetric efficiency and the air flow resistance versus the mass of test dust captured]]> /cms/render/live/en/sites/isoorg/contents/data/standard/08/30/83047.html /cms/render/live/en/sites/isoorg/contents/data/standard/08/30/83047.html 2024-08-22