DIN EN ISO 9000:2005 Quality management systems - Fundamentals and vocabulary (ISO 9000:2005); Trilingual version EN ISO 9000:2005
DIN EN ISO 9001:2008 Quality management systems - Requirements (ISO 9001:2008); Trilingual version EN ISO 9001:2008
DIN EN ISO 9004:2009 Managing for the sustained success of an organization - A quality management approach (ISO 9004:2009); Trilingual version EN ISO 9004:2009