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Under 25178, industry-specific taxonomies such as roughness vs waviness are replaced by the more general concept of "scale limited surface" and "cut-off" by "nesting index". The new available filters are described in the series of technical specifications included in ISO 16610. These filters include: the Gaussian filter, the spline filter ...
This part of ISO 25178 is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences chain link 2 of the chains of standards on areal surface texture.
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Areal roughness parameters are defined in the ISO 25178 series. The resulting values are Sa, Sq, Sz,... Many optical measurement instruments are able to measure the surface roughness over an area. Area measurements are also possible with contact measurement systems. Multiple, closely spaced 2D scans are taken of the target area.
ISO 25178: Geometrical Product Specifications (GPS) – Surface texture: areal is an International Organization for Standardization collection of international standards relating to the analysis of 3D areal surface texture.
ISO/FDIS 25178-2:2021(E) Introduction This document is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO 14638). It influences the chain link B of the chains of standards on areal surface texture. The ISO/GPS matrix model given in ISO 14638 gives an overview of the ISO/GPS system of ...
ISO 25178-2:2012(E) © ISO 2012 – All rights reserved v Introduction . This part of ISO 25178 is a geometrical product specification (GPS) standard and is to be regarded as a general GPS standard (see ISO/TR 14638). It influences chain link 2 of the chains of standards on areal surface texture.
Since its publication in 2012, the ISO 25178-2 standard defines parameters and specifications for areal surface texture analysis. An important revision was started a few years ago and the revised edition was published in December 2021. Here is a summary of what changed in the standard.
