<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 16890-2:2016]]> /cms/render/live/en/sites/isoorg/contents/data/standard/05/78/57865.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± 16890-2:2016]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 16890-2:2016 - Air filters for general ventilation — Part 2: Measurement of fractional efficiency and air flow resistance]]> /cms/render/live/en/sites/isoorg/contents/data/standard/05/78/57865.html /cms/render/live/en/sites/isoorg/contents/data/standard/05/78/57865.html 2022-07-29