Geometrical product specifications (GPS) - Cylindricity - Part 2: Specification operators (ISO 12180-2:2011); German version EN ISO 12180-2:2011— 19 стр.
Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out (ISO 1101:2004); German version EN ISO 1101:2005— 66 стр.