<![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 21809-1:2011]]> /cms/render/live/en/sites/isoorg/contents/data/standard/03/59/35997.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± 21809-1:2011]]> <![CDATA[Ïã¸ÛÁùºÏ²Ê¿ª½± 21809-1:2011 - Petroleum and natural gas industries — External coatings for buried or submerged pipelines used in pipeline transportation systems — Part 1: Polyolefin coatings (3-layer PE and 3-layer PP)]]> /cms/render/live/en/sites/isoorg/contents/data/standard/03/59/35997.html /cms/render/live/en/sites/isoorg/contents/data/standard/03/59/35997.html 2018-10-03