<![CDATA[ISO 13849-1:2015 - Safety of machinery -- Safety-related parts of control systems -- Part 1: General principles for design]]> http://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/06/98/69883.html http://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/06/98/69883.html 2017-03-15