prEN ISO 12179

Geometrical product specifications (GPS) - Surface texture: Profile - Calibration of contact (stylus) instruments (ISO/DIS 12179:2025)

This document specifies the calibration and adjustment of the metrological characteristics of contact (stylus) instruments for the measurement of surface texture by the profile method as defined in ISO 3274. The calibration and adjustment is intended to be carried out with the aid of measurement standards.
Annex B specifies the calibration and adjustment of metrological characteristics of simplified operator contact (stylus) instruments which do not conform with ISO 3274.

Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Profil - Kalibrierung von Tastschnittgeräten (ISO/DIS 12179:2025)

Spécification géométrique des produits (GPS) - État de surface: Profil - Étalonnage des instruments à contact (palpeur) (ISO/DIS 12179:2025)

Le présent document spécifie l'étalonnage et l’ajustage des caractéristiques métrologiques des instruments à contact (stylet) pour le mesurage de l'état de surface par la méthode du profil comme défini dans l'ISO 3274. L'étalonnage et et l’ajustage s’effectuent à l'aide d'étalons de mesure.
L'Annexe B spécifie l'étalonnage et le réglage des caractéristiques métrologiques des instruments à contact (stylet) à utilisation simplifiée qui ne sont pas conformes à l'ISO 3274.

Specifikacija geometrijskih veličin izdelka (GPS) - Tekstura površine: profilna - Umerjanje kontaktnih (s tipalom) instrumentov (ISO/DIS 12179:2025)

General Information

• Status: Not Published
• Publication Date: 13-Sep-2026
• ICS: 17.040.30 - Measuring instruments
• ICS: 17.040.40 - Geometrical Product Specification (GPS)
• Technical Committee: CEN/TC 290 - Dimensional and geometrical product specification and verification
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 13-Feb-2025
• Due Date: 13-Feb-2025
• Completion Date: 13-Feb-2025
• Ref Project: oSIST prEN ISO 12179:2025 - Geometrical product specifications (GPS) - Surface texture: Profile - Calibration of contact (stylus) instruments (ISO/DIS 12179:2025)

Relations

• Revises: EN ISO 12179:2022 - Geometrical product specifications (GPS) - Surface texture: Profile method - Calibration of contact (stylus) instruments (ISO 12179:2021)
• Effective Date: 15-Mar-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2025
Specifikacija geometrijskih veličin izdelka (GPS) - Tekstura površine: profilna -
Umerjanje kontaktnih (s tipalom) instrumentov (ISO/DIS 12179:2025)
Geometrical product specifications (GPS) - Surface texture: Profile - Calibration of
contact (stylus) instruments (ISO/DIS 12179:2025)
Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Profil -
Kalibrierung von Tastschnittgeräten (ISO/DIS 12179:2025)
Spécification géométrique des produits (GPS) - État de surface: Profil - Étalonnage des
instruments à contact (palpeur) (ISO/DIS 12179:2025)
Ta slovenski standard je istoveten z: prEN ISO 12179
ICS:
17.040.30 Merila Measuring instruments
17.040.40 Specifikacija geometrijskih Geometrical Product
veličin izdelka (GPS) Specification (GPS)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 12179
ISO/TC 213
Geometrical product specifications
Secretariat: BSI
(GPS) — Surface texture: Profile
Voting begins on:
— Calibration of contact (stylus)
2025-02-14
instruments
Voting terminates on:
2025-05-09
Spécification géométrique des produits (GPS) — État de surface:
Profil — Étalonnage des instruments à contact (palpeur)
ICS: 17.040.30; 17.040.40
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 12179:2025(en)
DRAFT
ISO/DIS 12179:2025(en)
International
Standard
ISO/DIS 12179
ISO/TC 213
Geometrical product specifications
Secretariat: BSI
(GPS) — Surface texture: Profile
Voting begins on:
— Calibration of contact (stylus)
instruments
Voting terminates on:
Spécification géométrique des produits (GPS) — État de surface:
Profil — Étalonnage des instruments à contact (palpeur)
ICS: 17.040.30; 17.040.40
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2025
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 12179:2025(en)
ii
ISO/DIS 12179:2025(en)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Conditions of use . 3
4.1 Components and configurations of the contact (stylus) instrument .3
4.2 Calibration of a configuration .3
4.3 Place of calibration .3
4.4 Defects .3
5 Measurement standards . . 3
6 Contact (stylus) instrument metrological characteristics . 6
6.1 General .6
6.2 Residual profile calibration .6
6.3 Vertical profile component calibration .6
6.4 Horizontal profile component calibration .6
6.5 Profile coordinate system calibration .6
6.6 Total contact (stylus) instrument calibration .6
7 Calibration . 7
7.1 Preparation for calibration .7
7.2 Evaluation of the residual profile .7
7.3 Calibration of the vertical profile component .7
7.3.1 Overall objective .7
7.3.2 Procedure .7
7.4 Calibration of the horizontal profile component . .8
7.4.1 Overall objective .8
7.4.2 Procedure .8
7.5 Calibration of the profile coordinate system .8
7.5.1 Overall objective .8
7.5.2 Procedure .8
7.6 Calibration of the total contact (stylus) instrument .8
7.6.1 Overall objective .8
7.6.2 Procedure .9
7.7 Other calibrations .9
8 Measurement uncertainty . 9
8.1 Information from the calibration certificate for a measurement standard .9
8.2 Uncertainty of the values measured during calibration of a measuring instrument
using a measurement standard .9
9 Contact (stylus) instrument calibration certificate . 10
10 General information . 10
Annex A (normative) Calibration of instruments measuring parameters of the motifs method .11
Annex B (normative) Calibration of simplified operator instruments for the measurements of
surface texture.13
Annex C (informative) Example — Roughness measurement standard parameter Ra . 14
Annex D (informative) Concept diagram . 17
Annex E (informative) Overview of profile and areal standards in the GPS matrix model .18
Annex F (informative) Relation to the GPS matrix model . 19

iii
ISO/DIS 12179:2025(en)
Bibliography .20

iv
ISO/DIS 12179:2025(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibi
...