GB/T 26958.85-2022

This standard specifies morphological areal filters for segmenting surface texture data into distinct regions, such as peaks, valleys, and plateaus, based on their geometric features. It is applied in precision engineering and manufacturing for analyzing surface topography, particularly in quality control of machined parts, automotive components, and optical surfaces where functional performance depends on surface structure. The segmentation enables engineers to isolate and evaluate specific surface characteristics, such as wear patterns or contact areas, from 3D profilometry measurements.