ISO/DIS 25178-71

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ISO/DIS 25178-71 is a Draft International Standard (DIS) within the ISO 25178 series, focusing on Geometrical Product Specifications (GPS) – Surface texture: areal. Specifically, it defines Type S1 and Type S2 software measurement standards (etalons) for verifying software in measuring instruments used for areal surface texture analysis. It also defines the file format for Type S1 standards, used in the calibration of these instruments.