<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 23551-4:2018]]> /cms/render/live/es/sites/isoorg/contents/data/standard/06/82/68290.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± 23551-4:2018]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 23551-4:2018 - Safety and control devices for gas burners and gas-burning appliances — Particular requirements — Part 4: Valve-proving systems for automatic shut-off valves]]> /cms/render/live/es/sites/isoorg/contents/data/standard/06/82/68290.html /cms/render/live/es/sites/isoorg/contents/data/standard/06/82/68290.html 2023-11-13