EN ISO 6507-3:2018

SLOVENSKI STANDARD
01-julij-2018
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SIST EN ISO 6507-3:2006
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Metallic materials - Vickers hardness test - Part 3: Calibration of reference blocks (ISO
6507-3:2018)
Metallische Werkstoffe - Härteprüfung nach Vickers - Teil 3: Kalibrierung von
Härtevergleichsplatten (ISO 6507-3:2018)
Matériaux métalliques - Essai de dureté Vickers - Partie 3: Étalonnage des blocs de
référence (ISO 6507-3:2018)
Ta slovenski standard je istoveten z: EN ISO 6507-3:2018
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 6507-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 77.040.10 Supersedes EN ISO 6507-3:2005
English Version
Metallic materials - Vickers hardness test - Part 3:
Calibration of reference blocks (ISO 6507-3:2018)
Matériaux métalliques - Essai de dureté Vickers - Partie Metallische Werkstoffe - Härteprüfung nach Vickers -
3: Étalonnage des blocs de référence (ISO 6507- Teil 3: Kalibrierung von Härtevergleichsplatten (ISO
3:2018) 6507-3:2018)
This European Standard was approved by CEN on 18 January 2018.

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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6507-3:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6507-3:2018) has been prepared by Technical Committee ISO/TC 164
“Mechanical testing of metals” in collaboration with Technical Committee ECISS/TC 101 “Test methods
for steel (other than chemical analysis)” 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 September 2018, and conflicting national standards
shall be withdrawn at the latest by September 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6507-3:2005.
According to the CEN-CENELEC Internal Regulations, the national standards organizations 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 6507-3:2018 has been approved by CEN as EN ISO 6507-3:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 6507-3
Fourth edition
2018-01
Metallic materials — Vickers
hardness test —
Part 3:
Calibration of reference blocks
Matériaux métalliques — Essai de dureté Vickers —
Partie 3: Étalonnage des blocs de référence
Reference number
ISO 6507-3:2018(E)
©
ISO 2018
ISO 6507-3:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
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below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2018 – All rights reserved

ISO 6507-3:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Manufacture of reference blocks . 1
4.1 General . 1
4.2 Thickness . 1
4.3 Test surface area . 1
4.4 Magnetism . . 2
4.5 Flatness and parallelism . 2
4.6 Surface roughness . 2
4.7 Prevention of the regrind of the test surface . 2
5 Calibration machine . 2
5.1 General . 2
5.2 Direct verification . 2
5.3 Traceability of verification instruments . 2
5.4 Test force . 3
5.5 Indenter . . 3
5.6 Diagonal measuring system . 4
6 Calibration procedure . 5
7 Number of indentations . 5
8 Uniformity of hardness . 6
8.1 Relative non-uniformity . 6
8.2 Uncertainty of measurement . 7
9 Marking . 7
10 Calibration certificate . 7
11 Validity . 8
Annex A (informative) Uncertainty of the mean hardness value of hardness reference blocks .9
Annex B (informative) Adjustment of Köhler illumination systems .14
Bibliography .15
ISO 6507-3:2018(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.
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).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals,
Subcommittee SC 3, Hardness testing.
This fourth edition cancels and replaces the third edition (ISO 6507-3:2005), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— requirements have been added for the maximum test surface area of the reference block;
— requirements have been revised for the maximum uncertainty of the line intervals on the stage
micrometer;
— requirements for the calibration and verification of the measuring system have been revised per
ISO 6507-2;
— requirements for the uniformity of the reference block hardness
...