<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 5222-1:2023]]> /cms/render/live/en/sites/isoorg/contents/data/standard/08/10/81013.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± 5222-1:2023]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 5222-1:2023 - Heat recovery ventilators and energy recovery ventilators — Testing and calculating methods for seasonal performance factor — Part 1: Sensible heating recovery seasonal performance factors of heat recovery ventilators (HRV)]]> /cms/render/live/en/sites/isoorg/contents/data/standard/08/10/81013.html /cms/render/live/en/sites/isoorg/contents/data/standard/08/10/81013.html 2024-04-23