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.
Geometrical product specifications (GPS) - Straightness - Part 2: Specification operators (ISO 12780-2:2011); German version EN ISO 12780-2:2011— 16 стр.