ISO 25178-606:2026

Geometrical product specifications (GPS) — Surface texture: Areal — Part 606: Design and characteristics of non-contact (focus variation) instruments

Publication date:   May 4, 2026

General information

60.60   Standard published   May 4, 2026

ISO

ISO/TC 213 Dimensional and geometrical product specifications and verification

International Standard

17.040.40   Geometrical Product Specification (GPS)

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Scope

This document specifies the design and characteristics of focus variation instruments for areal measurement of surface topography. Because surface profiles can be extracted from areal surface topography data, the methods described in this document are also applicable to profiling measurements as well.
This document applies to focus variation without pattern illumination or with fixed pattern illumination. This document does not cover methods using varying pattern illumination during the measurement.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 25178-606:2015

NOW

PUBLISHED
ISO 25178-606:2026
60.60 Standard published
May 4, 2026