SIST EN ISO 25178-71:2014

Geometrical product specifications (GPS) - Surface texture: Areal - Part 7: Software measurement standards (ISO 25178-71:2012)

This part of ISO 25178 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 6.

Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Flächenhaft - Teil 7: Software-Normale (ISO 25178-71:2012)

Dieser Teil von ISO 25178 legt die Typen S1 und S2 des Software Normals (Normals) zur Überprüfung der Software von Messinstrumenten fest. Er legt auch das Datenformat des Software Normals S1 für die Kalibrierung von Messgeräten zur flächenhaften Messung der Oberflächenbeschaffenheit fest, wie sie für das Kettenglied 6 der Normenkette über die Oberflächenbeschaffenheit definiert ist.
ANMERKUNG   In diesem Teil von ISO 25178 wird durchgehend der Begriff „Software Normal“ als Ersatz für den Begriff „Software Normal vom Typ S1“ verwendet.

Spécification géométrique des produits (GPS) - État de surface: Surfacique - Partie 7: Étalons logiciels (ISO 25178-71:2012)

L'ISO 25178-71:2012 définit les étalons logiciels de Types S1 et S2 qui permettent de vérifier les logiciels des instruments de mesure. Elle définit également le format de fichier des étalons logiciels de Type S1 utilisés pour l'étalonnage des instruments de mesure d'état de surface, conformément à la méthode décrite dans le maillon 6 de la chaîne de normes sur l'état de surface surfacique.

Specifikacija geometrijskih veličin izdelka (GPS) - Tekstura površine: ravna - 7. del: Standardi za merilno programsko opremo (ISO 25178-71:2012)

Ta del standarda ISO 25178 določa standarde za merilno programsko opremo tipov S1 in S2 (etalon) za preverjanje programske opreme merilnih instrumentov. Določa tudi obliko zapisa datoteke standardov za merilno programsko opremo tipa S1 za kalibracijo instrumentov, ki se uporabljajo za merjenje teksture površine s ploskovno metodo, ki jo določa skupina standardov za ploskovno površinsko teksturo, člen verige 6.

General Information

• Status: Withdrawn
• Public Enquiry End Date: 24-Nov-2009
• Publication Date: 27-May-2014
• Withdrawal Date: 19-Oct-2017
• ICS: 17.040.20 - Properties of surfaces
• ICS: 17.040.40 - Geometrical Product Specification (GPS)
• ICS: 35.080 - Software
• Technical Committee: ISEL - Mechanical elements
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 20-Oct-2017
• Due Date: 12-Nov-2017
• Completion Date: 20-Oct-2017
• Ref Project: EN ISO 25178-71:2012 - Geometrical product specifications (GPS) - Surface texture: Areal - Part 71: Software measurement standards (ISO 25178-71:2012)

Relations

• Replaced By: SIST EN ISO 25178-71:2017 - Geometrical product specifications (GPS) - Surface texture: Areal - Part 71: Software measurement standards (ISO 25178-71:2017)
• Effective Date: 18-Oct-2017
• Replaced By: SIST EN ISO 25178-71:2017 - Geometrical product specifications (GPS) - Surface texture: Areal - Part 71: Software measurement standards (ISO 25178-71:2017)
• Effective Date: 08-Jun-2022
• Revised: SIST EN ISO 25178-71:2017 - Geometrical product specifications (GPS) - Surface texture: Areal - Part 71: Software measurement standards (ISO 25178-71:2017)
• Effective Date: 01-Sep-2015

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 25178-71:2014
01-julij-2014
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND*367HNVWXUDSRYUãLQHUDYQD
GHO6WDQGDUGL]DPHULOQRSURJUDPVNRRSUHPR,62
Geometrical product specifications (GPS) - Surface texture: Areal - Part 7: Software
measurement standards (ISO 25178-71:2012)
Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Flächenhaft -
Teil 7: Software-Normale (ISO 25178-71:2012)
Spécification géométrique des produits (GPS) - État de surface: Surfacique - Partie 7:
Étalons logiciels (ISO 25178-71:2012)
Ta slovenski standard je istoveten z: EN ISO 25178-71:2012
ICS:
17.040.20 Lastnosti površin Properties of surfaces
SIST EN ISO 25178-71:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 25178-71:2014

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SIST EN ISO 25178-71:2014


EUROPEAN STANDARD
EN ISO 25178-71

NORME EUROPÉENNE

EUROPÄISCHE NORM
December 2012
ICS 17.040.20
English Version
Geometrical product specifications (GPS) - Surface texture:
Areal - Part 71: Software measurement standards (ISO 25178-
71:2012)
Spécification géométrique des produits (GPS) - État de Geometrische Produktspezifikation (GPS) -
surface: Surfacique - Partie 71: Étalons logiciels (ISO Oberflächenbeschaffenheit: Flächenhaft - Teil 71: Software-
25178-71:2012) Normale (ISO 25178-71:2012)
This European Standard was approved by CEN on 10 November 2012.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 25178-71:2012: E
worldwide for CEN national Members.

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SIST EN ISO 25178-71:2014
EN ISO 25178-71:2012 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 25178-71:2014
EN ISO 25178-71:2012 (E)
Foreword
This document (EN ISO 25178-71:2012) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of
which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at
the latest by June 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 25178-71:2012 has been approved by CEN as a EN ISO 25178-71:2012 without any
modification.

3

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SIST EN ISO 25178-71:2014

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SIST EN ISO 25178-71:2014
INTERNATIONAL ISO
STANDARD 25178-71
First edition
2012-12-01
Geometrical product specifications
(GPS) — Surface texture: Areal —
Part 71:
Software measurement standards
Spécification géométrique des produits (GPS) — État de surface:
Surfacique — Partie 71: Étalons logiciels
Reference number
ISO 25178-71:2012(E)
©
ISO 2012

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
Contents Page
Foreword .iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Type S software measurement standards . 2
4.1 General . 2
4.2 Type S1, reference data . 2
4.3 Type S2, reference software . 3
5 File format for type S1 reference data . 3
5.1 General . 3
5.2 Record 1 — Header . 3
5.3 Record 2 — Data area . 5
5.4 Record 3 — Trailer . 5
6 Software measurement standard certificate . 6
Annex A (informative) Examples . 7
Annex B (informative) Relation to the GPS matrix model .10
Bibliography .12
© ISO 2012 – All rights reserved iii

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 25178-71 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
ISO 25178 consists of the following parts, under the general title Geometrical product specifications (GPS) —
Surface texture: Areal:
— Part 2: Terms, definitions and surface texture parameters
— Part 3: Specification operators
— Part 6: Classification of methods for measuring surface texture
— Part 70: Physical measurement standards
— Part 71: Software measurement standards
— Part 601: Nominal characteristics of contact (stylus) instruments
— Part 602: Nominal characteristics of non-contact (confocal chromatic probe) instruments
— Part 604: Nominal characteristics of non-contact (coherence scanning interferometry) instruments
— Part 605: Nominal characteristics of non-contact (point autofocus probe) instruments
— Part 701: Calibration and measurement standards for contact (stylus) instruments
The following parts are under preparation:
— Part 1: Indication of surface texture
— Part 603: Nominal characteristics of non-contact (phase-shifting interferometric microscopy) instruments
— Part 606: Nominal characteristics of non-contact (focus variation) instruments
iv © ISO 2012 – All rights reserved

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
Introduction
This part of ISO 25178 is a geometrical product specification (GPS) standard and is to be regarded as a general
GPS standard (see ISO/TR 14638). It influences the chain link 6 of the chains of standards on surface texture.
The ISO/GPS Masterplan given in ISO/TR 14638 gives an overview of the ISO/GPS system of which this
document is a part. The fundamental rules of ISO/GPS given in ISO 8015 apply to this document and the
default decision rules given in ISO 14253-1 apply to specifications made in accordance with this document,
unless otherwise indicated.
For more detailed information of the relation of this standard to the GPS matrix model, see Annex B.
This part of ISO 25178 is concerned with software gauges (Type S1) and reference software (Type S2). It also
defines the SDF file format for type S1 software gauges.
The SURFACE DATA FILE (SDF) format is already used by industry in particular by instrument manufacturers
and academia. The SDF file format as defined in this document is a standardized sub-set of the possibilities
included in the SDF file format as initially defined in the European Surfstand project and EUR15178. It is
envisaged that the SDF file format could evolve (as more experience in its usage and future requirements are
identified) later in a version 2.0 with additional fields and possibilities.
© ISO 2012 – All rights reserved v

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SIST EN ISO 25178-71:2014

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SIST EN ISO 25178-71:2014
INTERNATIONAL STANDARD ISO 25178-71:2012(E)
Geometrical product specifications (GPS) — Surface texture:
Areal —
Part 71:
Software measurement standards
1 Scope
This part of ISO 25178 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 6.
NOTE Throughout this part of ISO 25178, the term “softgauge” is used as a substitute for “software measurement
standard Type S1”.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 5436-2:2001, Geometrical Product Specifications (GPS) — Surface texture: Profile method; Measurement
standards — Part 2: Software measurement standards
ISO 16610 (all parts), Geometrical Product Specifications (GPS) — Filtration
ISO 17450-2:2012, Geometrical product specifications (GPS) — General concepts — Part 2: Basic tenets,
specifications, operators, uncertainties and ambiguities
ISO 25178-2, Geometrical product specifications (GPS) — Surface texture: Areal — Part 2: Terms, definitions
and surface texture parameters
ISO 25178-3, Geometrical product specifications (GPS) — Surface texture: Areal — Part 3: Specification operators
ISO/IEC Guide 98-1:2009, Uncertainty of measurement — Part 1: Introduction to the expression of uncertainty
in measurement
ISO/IEC Guide 99:2007, International vocabulary of metrology — Basic and general concepts and
associated terms (VIM)
3 Terms and definitions
For the purpose of this document, the terms and definitions in ISO 25178-2, ISO 25178-3, ISO 5436-2:2001, the
ISO 16610 series, ISO 17250-2, ISO/IEC Guide 98-1 and ISO/IEC Guide 99, and the following apply.
3.1
software measurement standard
reference data or reference software intended to reproduce the value of a measurand with known specification
uncertainty in order to verify the software used to calculate the value of a measurand
3.2
CHAR[n]
array of n ASCII characters
© ISO 2012 – All rights reserved 1

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
3.3
BYTE
1-byte (8-bit) representation of an ASCII character
3.4
UINT16
2-byte representation of an unsigned integer
NOTE 1 Unsigned integers have a minimum value of 0 and a maximum value of 65 535.
NOTE 2 The less significant bytes are stored in lower memory addresses; the more significant bytes are stored in
higher memory addresses.
3.5
INT16
2-byte representation of a signed integer
NOTE 1 Short integers have a minimum value of −32 768 and a maximum value of +32 767.
NOTE 2 The less significant bytes are stored in lower memory addresses; the more significant bytes are stored in
higher memory addresses.
3.6
INT32
4-byte representation of a signed integer
NOTE 1 Long integers have a minimum value of −2 147 483 648 and a maximum value of [phone].
NOTE 2 The less significant bytes are stored in lower memory addresses; the more significant bytes are stored in
higher memory addresses.
3.7
DOUBLE
8-byte representation consisting of a sign bit, an 11-bit binary exponent, and a 52-bit mantissa, plus the implied
high-order 1 bit
NOTE 1 Double precision float have an approximate range of ± 2,22e-1022 to ± 2,22e+1023.
NOTE 2 The less significant bytes are stored in lower memory addresses; the more significant bytes are stored in
higher memory addresses.
NOTE 3 See the IEEE 754-1985 Standard for binary floating-point arithmetic.
4 Type S software measurement standards
4.1 General
These measurement standards are designed to verify the measuring instrument’s software (i.e. filter algorithms,
parameter calculation, etc.).
The content of a measurement standard shall be considered a scale limited surface (i.e. an S-F surface or an
S-L surface). No part of the content of a measurement standard shall be considered form and thus, no form
removal shall be undertaken on a measurement standard prior to presenting it to the software being tested.
4.2 Type S1, reference data
This type of measurement standard is a computer data file that contains a digital representation of a scale
limited surface in a suitable recording medium.
2 © ISO 2012 – All rights reserved

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SIST EN ISO 25178-71:2014
ISO 25178-71:2012(E)
Type S1 reference data are used to test software by inputting them as data into the software under test/calibration
and comparing the results from the software under test with the certified results from the calib
...

SLOVENSKI STANDARD
oSIST prEN ISO 25178-7:2009
01-november-2009
6SHFLILNDFLMDJHRPHWULMVNLKYHOLþLQL]GHOND7HNVWXUDSRYUãLQHUDYQDGHO
6WDQGDUGL]DPHULOQRSURJUDPVNRRSUHPR,62',6
Geometrical product specifications (GPS) - Surface texture: Areal - Part 7: Software
measurement standards (ISO/DIS 25178-7:2009)
Geometrische Produktspezifikation (GPS) - Oberflächenbeschaffenheit: Flächenhaft -
Teil 7: Software-Normale (ISO/DIS 25178-7:2009)
Spécification géométrique des produits (GPS) - État de surface: Surfacique - Partie 7:
Étalons logiciels (ISO/DIS 25178-7:2009)
Ta slovenski standard je istoveten z: prEN ISO 25178-7
ICS:
17.040.20 Lastnosti površin Properties of surfaces
oSIST prEN ISO 25178-7:2009 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 25178-7:2009

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oSIST prEN ISO 25178-7:2009


EUROPEAN STANDARD
DRAFT
prEN ISO 25178-7
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2009
ICS 17.040.20
English Version
Geometrical product specifications (GPS) - Surface texture:
Areal - Part 7: Software measurement standards (ISO/DIS
25178-7:2009)
Spécification géométrique des produits (GPS) - État de Geometrische Produktspezifikation (GPS) -
surface: Surfacique - Partie 7: Étalons logiciels (ISO/DIS Oberflächenbeschaffenheit: Flächenhaft - Teil 7: Software-
25178-7:2009) Normale (ISO/DIS 25178-7:2009)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 290.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 25178-7:2009: E
worldwide for CEN national Members.

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oSIST prEN ISO 25178-7:2009
prEN ISO 25178-7:2009 (E)
Contents Page
Foreword .3

2

---------------------- Page: 4 ----------------------
oSIST prEN ISO 25178-7:2009
prEN ISO 25178-7:2009 (E)
Foreword
This document (prEN ISO 25178-7:2009) has been prepared by Technical Committee ISO/TC 213
"Dimensional and geometrical product specifications and verification" in collaboration with Technical
Committee CEN/TC 290 “Dimensional and geometrical product specification and verification” the secretariat of
which is held by AFNOR.
This document is currently submitted to the parallel Enquiry.
Endorsement notice
The text of ISO/DIS 25178-7:2009 has been approved by CEN as a prEN ISO 25178-7:2009 without any
modification.

3

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oSIST prEN ISO 25178-7:2009

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oSIST prEN ISO 25178-7:2009
DRAFT INTERNATIONAL STANDARD ISO/DIS 25178-7
ISO/TC 213 Secretariat: DS
Voting begins on: Voting terminates on:
2009-08-20 2010-01-20
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Geometrical product specifications (GPS) — Surface texture:
Areal —
Part 7:
Software measurement standards
Spécification géométrique des produits (GPS) — État de surface: Surfacique —
Partie 7: Étalons logiciels
ICS 17.040.20

ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO 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.
©
International Organization for Standardization, 2009

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oSIST prEN ISO 25178-7:2009
ISO/DIS 25178-7
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Requests for permission to reproduce should be addressed to either ISO at the address below or ISO's
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ISO copyright office
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Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2009 – All rights reserved

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oSIST prEN ISO 25178-7:2009
ISO/DIS 25178-7
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Type S software measurement standards .2
4.1 General .2
4.2 Type S1, reference data .3
4.3 Type S2, reference software.3
5 File format for type S1 reference data.3
5.1 General .3
5.2 Record 1 – Header.3
5.2.1 Version number .3
5.2.2 Measurement instrument manufacturer's identifier .3
5.2.3 Original creation date and time.3
5.2.4 Last modification date and time .3
5.2.5 Number of points per profile, M .4
5.2.6 Number of profiles or traces. N.4
5.2.7 X, Y & Z axis scale factors.4
5.2.8 Z axis resolution.4
5.2.9 Compression type .4
5.2.10 Data type .4
5.2.11 Checksum type .4
5.3 Record 2 – Data area.5
5.4 Record 3 – Trailer .5
6 Software measurement standard certificate.6
Annex A (informative) Examples .7
Annex B (informative) Relation to the GPS matrix model.9
Bibliography.10

© ISO 2009 – All rights reserved iii

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oSIST prEN ISO 25178-7:2009
ISO/DIS 25178-7
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 25178-7 was prepared by Technical Committee ISO/TC 213, Dimensional and geometrical product
specifications and verification.
ISO 25178 consists of the following parts, under the general title Geometrical product specification (GPS) —
Surface texture: Areal:
 Part 1: Areal – Indication of surface texture
 Part 2: Areal – Terms, definitions and surface texture parameters
 Part 3: Areal – Specification operators
 Part 6: Classification of methods for measuring surface texture
 Part 601: Nominal characteristics of contact (stylus) instruments
 Part 602: Nominal characteristics of non- contact (confocal chromatic probe) instruments
 Part 603: Nominal characteristics of non- contact (phase- shifting interferometric) Instruments
 Part 604: Nominal characteristics of non-contact (coherence scanning interferometry) instruments
 Part 7: Software measurement standards
 Part 701: Calibration and measurement standards for contact (stylus) instruments
 Part 702: Calibration and measurement standards for non- contact (confoucal chromatic probe)
instruments
 Part 703: Calibration and measurement standards for non- contact (phase- shifting interferometry)
instruments

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oSIST prEN ISO 25178-7:2009
ISO/DIS 25178-7
Introduction
This part of ISO 25178 is a geometrical product specification (GPS) standard and is to be regarded as a
general GPS standard (see ISO/TR 14638). It influences the chain link 6 of the chains of standards on surface
texture.
For more detailed information of the relation of this standard to the GPS matrix model see annex B.
This part of ISO 25178 is concerned with software gauges (Type S1) and reference software (Type S2). It also
defines the SDF file format for type S1 software gauges.
The SURFACE DATA FILE (SDF) format is already used by industry in particular instrument manufacturers
and academia. The SDF file format as defined in this international document is a standardised sub-set of the
possibilities included in the SDF file format as initially defined in the European Surfstand project and
EUR15178. It is envisaged that the SDF file format could evolve (as more experience in its usage and future
requirements are identified) later in a version 2.0 with additional fields and possibilities.

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oSIST prEN ISO 25178-7:2009

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oSIST prEN ISO 25178-7:2009
DRAFT INTERNATIONAL STANDARD ISO/DIS 25178-7

Geometrical product specifications (GPS) — Surface texture:
Areal —
Part 7:
Software measurement standards
1 Scope
This part of ISO 25178 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 6.
NOTE 1 Throughout this part of ISO 25178, the term “softgauge” is used as a substitute for “software measurement
standard Type S1”.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 25178-2, Geometrical Product Specifications (GPS) — Surface texture: Areal — Terms, Definitions and
Parameters
ISO 25178-3, Geometrical Product Specifications (GPS) — Surface texture: Areal — Specification Operators
ISO 5436-2:2000, Geometrical Product Specifications (GPS) — Surface texture: Profile method;
Measurement standards — Part 2: Software measurement standards
ISO/TS 16610 series, Geometrical Product Specifications (GPS) — Filtration
ISO 17450-2, Geometrical Product Specifications (GPS) — General concepts — Part 2: Basic tenets,
specifications, operators and uncertainties
...