Geometrical product specifications (GPS) - Roundness - Part 1: Vocabulary and parameters of roundness (ISO/TS 12181-1:2003); German version CEN ISO/TS 12181-1:2007
Geometrical product specifications (GPS) - Straightness - Part 1: Vocabulary and parameters of straightness (ISO/TS 12780-1:2003); German version CEN ISO/TS 12780-1:2007
Geometrical product specifications (GPS) - Flatness - Part 1: Vocabulary and parameters of flatness (ISO/TS 12781-1:2003); German version CEN ISO/TS 12781-1:2007