EN ISO 25178-605:2025 PDF

Name: EN ISO 25178-605:2025 — Geometrical product specifications (GPS) - Surface texture: Areal - Part 605: Design and characteristics of non-contact (point autofocus probe) instruments (ISO 25178-605:2025)
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Geometrical product specifications (GPS) - Surface texture: Areal - Part 605: Design and characteristics of non-contact (point autofocus probe) instruments (ISO 25178-605:2025)

Название (английский):

EN ISO 25178-605:2025

Geometrical product specifications (GPS) - Surface texture: Areal - Part 605: Design and characteristics of non-contact (point autofocus probe) instruments (ISO 25178-605:2025)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 24
Дата публикации:: 26 февраля 2025 г.
Издание:: CEN EN 25178 edition 2 version 1
ICS:: 17.040.20

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Описание (английский):

This document specifies the design and metrological characteristics of point autofocus probe (PAP) instruments for the 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.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 25178-605:2025 - Geometrical product specifications (GPS) - Surface texture: Areal - Part 605 - specifies the design and metrological characteristics of non-contact point autofocus probe (PAP) instruments for areal surface topography measurement. Published February 2025 and endorsed by CEN, this second edition replaces the 2014 version and aligns PAP instrument requirements with the ISO GPS framework. Because areal data can produce profiles, the document’s methods are also applicable to profiling measurements.

Key topics and requirements

Instrument scope and definitions: Precise terms such as point autofocus probe (PAP), probing system, working distance, spot size, focus range, vertical range, and autofocus repeatability are defined to standardize language for PAP instruments.

Instrument requirements (Clause 4): Summarizes normative features and the information flow needed for PAP areal measurement systems.

Metrological characteristics (Clause 5): Describes the metrological parameters relevant to PAP measurements (repeatability, measurable reflection ratio, speckle noise, temperature drift, etc.).

Design features (Clause 6): Clarifies instrument types and essential design elements such as autofocus mechanism, objective, autofocus sensor, and z-position sensor.

Informative annexes:

Annex A: Principles of PAP instruments for areal surface topography.
Annex B: Sources of measurement error and influence quantities.
Annex C: Relationship to the ISO GPS matrix model.

Normative links: References ISO 25178-600:2019 for metrological characteristics and aligns with ISO GPS principles (ISO 14638, ISO 8015, ISO 14253-1).

Practical applications and users

EN ISO 25178-605:2025 is intended for professionals and organizations involved in surface texture measurement and instrument development, including:

Metrology laboratories and calibration facilities

Surface metrology instrument manufacturers (PAP system designers)

Quality control and inspection teams in precision manufacturing

R&D teams in optics, tooling, automotive, aerospace and other industries where surface topography affects function

Standards bodies and conformity assessors implementing GPS-compliant measurement workflows

Practical benefits include standardized terminology, guidance on key metrological parameters, and clear expectations for PAP instrument performance - aiding consistent areal and profile measurement results across laboratories and suppliers.

Related standards

ISO 25178-600:2019 - Metrological characteristics for areal topography measuring methods (normative reference).

ISO 14638, ISO 8015 and ISO 14253-1 - GPS framework and decision rules referenced for consistency with the ISO GPS matrix model.

Keywords: EN ISO 25178-605:2025, point autofocus probe, PAP instruments, areal surface topography, surface texture, GPS, metrological characteristics, non-contact measurement.

EN ISO 25178-605:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Practical applications and users

Related standards

Технические детали

ISO 25178-605:2025

Geometrical product specifications (GPS) — Surface texture: Areal — Part 605: Design and characteristics of n…

ISO 25178-600:2019

Geometrical product specifications (GPS) — Surface texture: Areal — Part 600: Metrological characteristics fo…

BS EN ISO 14638:2015

Geometrical product specifications (GPS). Matrix model.

SIST EN ISO 8015:2012

Geometrical product specifications (GPS) - Fundamentals - Concepts, principles and rules (ISO 8015:2011)

SIST EN ISO 14253-1:2018

Geometrical product specifications (GPS) - Inspection by measurement of workpieces and measuring equipment -…