Safety of machinery - Basic concepts, general principles for design - Part 1: Basic terminology, methodology - Amendment 1 (ISO 12100-1:2003/Amd 1:2009); German version EN ISO 12100-1:2003/A1:2009— 8 стр.
Railway applications - Track - Safety requirements for portable machines and trolleys for construction and maintenance; German version EN 13977:2005+A1:2007— 44 стр.