1. DIN EN ISO 3274, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Nominal characteristics of contact (stylus) instruments (ISO 3274:1996); German version EN ISO 3274:1997, Deutsches Institut für Normung e. V., Berlin, 1998.
2. DIN EN ISO 25178–6:2010–06, Geometrical product specifications (GPS) - Surface texture: Areal - Part 6: Classification of methods for measuring surface texture, Berlin, 2010.
3. DIN 4760, Form deviations; Concepts; Classification system, Deutsches Institut für Normung e. V., Berlin, 1982.
4. DIN EN ISO 4287:2010–07, Geometrical Product Specifications (GPS) - Surface texture: Profile method - Terms, definitions and surface texture parameters, Berlin, 2010.
5. DIN EN ISO 25178–2:2012–09, Geometrical product specifications (GPS) - Surface texture: Areal - Part 2: Terms, definitions and surface texture parameters, Deutsches Institut für Normung e. V., Berlin, 2012.