This section offers several articles on metrology and standards.

 Measure in 2D or 3D?
     Learn when and why some surfaces have to be analysed in 3D and others can be correctly described from a simple 2D profile.

 Geometrical Product Specification and Verification standards
     Introduction to GPS concept and GPS standards related to surface texture analysis.

 3D parameters for areal surface texture
     3D parameters from ISO 25178 and other sources.

 2D parameters for profile analysis
     2D parameters from various standards.

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