<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 3213:1975]]> /cms/render/live/es/sites/isoorg/contents/data/standard/00/84/8414.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± 3213:1975]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 3213:1975 - Polypropylene pipes — Reduction of permissible stress as a function of time and temperature]]> /cms/render/live/es/sites/isoorg/contents/data/standard/00/84/8414.html /cms/render/live/es/sites/isoorg/contents/data/standard/00/84/8414.html 1996-08-15