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ISO/FDIS 25178-71

Geometrical product specifications (GPS) — Surface texture: Areal — Part 71: Surface data file (SDF) file format

General information

50.20     May 18, 2026

ISO

ISO/TC 213

International Standard

17.040.40     17.040.20  

Scope

ISO 25178-71:2017 defines Type S1 and Type S2 software measurement standards (etalons) for verifying the software of measuring instruments. It also defines the file format of Type S1 software measurement standards for the calibration of instruments for the measurement of surface texture by the areal method as defined in the areal surface texture chain of standards, chain link G.
NOTE Throughout ISO 25178-71:2017, the term "softgauge" is used as a substitute for "software measurement standard Type S1".

Life cycle

PREVIOUSLY

PUBLISHED
ISO 25178-71:2017

NOW

PROJECT
ISO/FDIS 25178-71
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
May 18, 2026

National adoptions

dnaSRPS EN ISO 25178-71:2024  
ISS

Geometrical product specifications (GPS) - Surface texture: Areal - Part 71: Surface data file (SDF) file format (ISO/FDIS 25178‑71:2026)

50.20   Proof sent to secretariat or FDIS ballot initiated: 8 weeks

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