ISO 25178-1:2016 to ISO 25178-701:2010 

Geometrical product specifications (GPS) – Surface texture: Areal

This is a collection of standards for the analysis of areal surface texture. 
ISO 25178-1:2016 specifies the rules for indication of areal surface texture in technical product documentation (e.g. drawings, specifications, contracts, reports) by means of graphical symbols.


ISO 25178-2:2012 specifies terms, definitions and parameters for the determination of surface texture by areal methods.