Metallic materials - Brinell hardness test - Part 3: Calibration of reference blocks (ISO 6506-3:2014)

ISO 6506-3:2014 specifies a method for the calibration of reference blocks to be used in the indirect verification of Brinell hardness testing machines as described in ISO 6506‑2.
The procedures necessary to ensure metrological traceability of the calibration machine are also specified.

Metallische Werkstoffe - Härteprüfung nach Brinell - Teil 3: Kalibrierung von Härtevergleichsplatten (ISO 6506-3:2014)

In diesem Teil von ISO 6506 ist das Verfahren für die Kalibrierung von Härtevergleichsplatten festgelegt, die bei der indirekten Überprüfung von Härteprüfmaschinen nach Brinell nach ISO 6506-2 verwendet werden.
Weiterhin sind die Verfahren festgelegt, die zur Sicherstellung der metrologischen Rückführbarkeit der Bezugsnormalmesseinrichtungen erforderlich sind.

Matériaux métalliques - Essai de dureté Brinell - Partie 3: Étalonnage des blocs de référence (ISO 6506-3:2014)

L'ISO 6506-3 :2014 spécifie une méthode pour l'étalonnage des blocs de référence à utiliser pour la vérification indirecte des machines d'essai de dureté Brinell, comme décrite dans l'ISO 6506‑2.
Les procédures nécessaires pour assurer la traçabilité métrologique de la machine d'étalonnage sont également spécifiées.

Kovinski materiali - Preskus trdote po Brinellu - 3. del: Umerjanje primerjalnih ploščic (ISO 6506-3:2014)

Ta del standarda ISO 6506 določa metodo za umerjanje referenčnih ploščic, ki se uporabljajo pri posrednem preverjanju naprav za preskušanje trdote po Brinellu, kot je opisano v standardu ISO 6506‑2.
Določeni so tudi postopki, potrebni za zagotavljanje meroslovne sledljivosti naprave za umerjanje.

General Information

Status
Published
Publication Date
23-Sep-2014
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
24-Sep-2014
Completion Date
24-Sep-2014

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SLOVENSKI STANDARD
SIST EN ISO 6506-3:2014
01-december-2014
1DGRPHãþD
SIST EN ISO 6506-3:2006
.RYLQVNLPDWHULDOL3UHVNXVWUGRWHSR%ULQHOOXGHO8PHUMDQMHSULPHUMDOQLK
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Metallic materials - Brinell hardness test - Part 3: Calibration of reference blocks (ISO

6506-3:2014)
Metallische Werkstoffe - Härteprüfung nach Brinell - Teil 3: Kalibrierung von
Härtevergleichsplatten (ISO 6506-3:2014)

Matériaux métalliques - Essai de dureté Brinell - Partie 3: Étalonnage des blocs de

référence (ISO 6506-3:2014)
Ta slovenski standard je istoveten z: EN ISO 6506-3:2014
ICS:
77.040.10 Mehansko preskušanje kovin Mechanical testing of metals
SIST EN ISO 6506-3:2014 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 6506-3:2014
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SIST EN ISO 6506-3:2014
EUROPEAN STANDARD
EN ISO 6506-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2014
ICS 77.040.10 Supersedes EN ISO 6506-3:2005
English Version
Metallic materials - Brinell hardness test - Part 3: Calibration of
reference blocks (ISO 6506-3:2014)

Matériaux métalliques - Essai de dureté Brinell - Partie 3: Metallische Werkstoffe - Härteprüfung nach Brinell - Teil 3:

Étalonnage des blocs de référence (ISO 6506-3:2014) Kalibrierung von Härtevergleichsplatten (ISO 6506-3:2014)

This European Standard was approved by CEN on 30 August 2014.

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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6506-3:2014 E

worldwide for CEN national Members.
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SIST EN ISO 6506-3:2014
EN ISO 6506-3:2014 (E)
Contents
Page

Foreword ..............................................................................................................................................................3

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SIST EN ISO 6506-3:2014
EN ISO 6506-3:2014 (E)
Foreword

This document (EN ISO 6506-3:2014) 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 March 2015, and conflicting national standards shall be withdrawn at

the latest by March 2015.

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.

This document supersedes EN ISO 6506-3:2005.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Endorsement notice

The text of ISO 6506-3:2014 has been approved by CEN as EN ISO 6506-3:2014 without any modification.

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SIST EN ISO 6506-3:2014
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SIST EN ISO 6506-3:2014
INTERNATIONAL ISO
STANDARD 6506-3
Third edition
2014-10-01
Metallic materials — Brinell hardness
test —
Part 3:
Calibration of reference blocks
Matériaux métalliques — Essai de dureté Brinell —
Partie 3: Étalonnage des blocs de référence
Reference number
ISO 6506-3:2014(E)
ISO 2014
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SIST EN ISO 6506-3:2014
ISO 6506-3:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014

All rights reserved. Unless otherwise specified, 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 on the internet or an intranet, without prior

written permission. Permission can be requested 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 copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 6506-3:2014
ISO 6506-3:2014(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Manufacture of reference blocks ......................................................................................................................................................... 1

4 Calibration machine .......................................................................................................................................................................................... 2

5 Calibration procedure ..................................................................................................................................................................................... 3

6 Number of indentations ................................................................................................................................................................................ 3

7 Non-uniformity of reference block .................................................................................................................................................... 4

8 Marking .......................................................................................................................................................................................................................... 4

9 Validity ............................................................................................................................................................................................................................ 5

Annex A (informative) Uncertainty of the mean hardness value of reference blocks.......................................6

Bibliography .............................................................................................................................................................................................................................10

© ISO 2014 – All rights reserved iii
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SIST EN ISO 6506-3:2014
ISO 6506-3:2014(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 meaning of ISO specific terms and expressions related to conformity

assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers

to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 164, Mechanical testing of metals, Subcommittee

SC 3, Hardness testing.

This third edition cancels and replaces the second edition (ISO 6506-3:2005), which has been technically

revised.

ISO 6506 consists of the following parts, under the general title Metallic materials — Brinell hardness

test:
— Part 1: Test method
— Part 2: Verification and calibration of testing machines
— Part 3: Calibration of reference blocks
— Part 4: Tables of hardness values
iv © ISO 2014 – All rights reserved
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SIST EN ISO 6506-3:2014
INTERNATIONAL STANDARD ISO 6506-3:2014(E)
Metallic materials — Brinell hardness test —
Part 3:
Calibration of reference blocks
1 Scope

This part of ISO 6506 specifies a method for the calibration of reference blocks to be used in the indirect

verification of Brinell hardness testing machines as described in ISO 6506-2.

The procedures necessary to ensure metrological traceability of the calibration machine are also

specified.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 376, Metallic materials — Calibration of force-proving instruments used for the verification of uniaxial

testing machines

ISO 6506-1:2014, Metallic materials — Brinell hardness test — Part 1: Test method

ISO 6506-2:2014, Metallic materials — Brinell hardness test — Part 2: Verification and calibration of testing

machines
3 Manufacture of reference blocks
3.1 The block shall be specially manufactured for use as a reference block.

NOTE Attention is drawn to the need to use a manufacturing process which will give the necessary

homogeneity, stability of structure, and uniformity of surface hardness.
3.2 Each metal block to be calibrated shall be of a thickness not less than
— 16 mm for 10 mm balls,
— 12 mm for 5 mm balls, or
— 6 mm for smaller balls.

NOTE 12 mm for 10 mm balls can be used only if the hardness of the reference block is greater than 150 HBW.

3.3 The reference blocks shall be free of magnetism. It is recommended that the manufacturer shall

ensure that the blocks, if of steel, have been demagnetized at the end of the manufacturing process.

3.4 The flatness of the two surfaces and the parallelism of the reference block shall be in accordance

with Table 1.
© ISO 2014 – All rights reserved 1
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SIST EN ISO 6506-3:2014
ISO 6506-3:2014(E)
Table 1 — Requirements for the reference blocks
Permissible surface roughness
Tolerance in
Tolerance in flatness a
Diameter of ball parallelism
of the surfaces
mm mm
...

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