This part of ISO 25178 describes a classification system for methods used primarily for the measurement of surface texture. It defines three classes of methods, illustrates the relationships between the classes, and briefly describes specific methods.
DS/EN ISO 25178-6:2010 history
2010DS/EN ISO 25178-6:2010 Geometrical product specifications (GPS) - Surface texture: Areal - Part 6: Classification of methods for measuring surface texture