EN ISO 4545-2:2018
(Main)Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines (ISO 4545-2:2017)
Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines (ISO 4545-2:2017)
ISO 4545-2:2017 specifies the method of verification and calibration of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545‑1.
A direct method of verification and calibration is specified for the testing machine, indenter, and the diagonal length measuring system. An indirect verification method using reference blocks is specified for the overall checking of the machine.
If a testing machine is also to be used for other methods of hardness testing, it will be verified independently for each method.
Metallische Werkstoffe - Härteprüfung nach Knoop - Teil 2: Überprüfung und Kalibrierung der Prüfmaschinen (ISO 4545-2:2017)
In diesem Dokument ist das Verfahren für die Überprüfung und Kalibrierung von Härteprüfmaschinen zur Bestimmung der Knoop Härte von metallischen Werkstoffen nach ISO 4545 1 festgelegt.
Ein direktes Verfahren zur Prüfung und Kalibrierung der Härteprüfmaschine, des Eindringkörpers und des Diagnonalenmesssystems wird vorgegeben. Für die Gesamtprüfung der Maschine wird ein indirektes Prüfverfahren der Härteprüfmaschine angegeben.
Ist eine Prüfmaschine auch für andere Härteprüfverfahren vorgesehen, wird sie für jedes Verfahren einzeln geprüft.
Matériaux métalliques - Essai de dureté Knoop - Partie 2: Vérification et étalonnage des machines d'essai (ISO 4545-2:2017)
ISO 4545-2:2017 spécifie une méthode de vérification et d'étalonnage des machines d'essai utilisées pour la détermination de la dureté Knoop pour les matériaux métalliques conformément à l'ISO 4545-1.
Une méthode directe de vérification et d'étalonnage est spécifiée pour la machine d'essais, le pénétrateur et le système de mesure de la longueur de la diagonale. Une méthode de vérification indirecte à l'aide de blocs de référence est spécifiée pour la vérification globale de la machine.
Si une machine d'essai est également utilisée pour d'autres méthodes d'essai de dureté, elle doit être vérifiée indépendamment pour chaque méthode.
Kovinski materiali - Preskus trdote po Knoopu - 2. del: Preverjanje in umerjanje naprav za preskušanje (ISO 4545-2:2017)
Ta del dokument določa metodo za preverjanje in umerjanje preskuševalnih naprav za določanje
trdote kovinskih materialov po Knoopu v skladu s standardom ISO 4545-1.
Določa neposredno metodo za preverjanje in umerjanje naprave za preskušanje, preskusne konice in sistema za merjenje dolžine diagonale. Za splošno pregledovanje naprave določa posredno metodo preverjanja z uporabo primerjalnih ploščic.
Če se naprava za preskušanje uporablja tudi za druge metode preskusa trdote, jo je treba preveriti posebej za vsako metodo.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2018
1DGRPHãþD
SIST EN ISO 4545-2:2006
Kovinski materiali - Preskus trdote po Knoopu - 2. del: Preverjanje in umerjanje
naprav za preskušanje (ISO 4545-2:2017)
Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing
machines (ISO 4545-2:2017)
Metallische Werkstoffe - Härteprüfung nach Knoop - Teil 2: Überprüfung und Kalibrierung
der Prüfmaschinen (ISO 4545-2:2017)
Matériaux métalliques - Essai de dureté Knoop - Partie 2 : Vérification et étalonnage des
machines d'essai (ISO 4545-2:2017)
Ta slovenski standard je istoveten z: EN ISO 4545-2:2018
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 4545-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 19.060; 77.040.10 Supersedes EN ISO 4545-2:2005
English Version
Metallic materials - Knoop hardness test - Part 2:
Verification and calibration of testing machines (ISO 4545-
2:2017)
Matériaux métalliques - Essai de dureté Knoop - Partie Metallische Werkstoffe - Härteprüfung nach Knoop -
2: Vérification et étalonnage des machines d'essai (ISO Teil 2: Überprüfung und Kalibrierung der
4545-2:2017) Prüfmaschinen (ISO 4545-2:2017)
This European Standard was approved by CEN on 30 November 2017.
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 4545-2:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4545-2:2018) 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 4545-2:2005.
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 4545-2:2017 has been approved by CEN as EN ISO 4545-2:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 4545-2
Second edition
2017-12
Metallic materials — Knoop
hardness test —
Part 2:
Verification and calibration of testing
machines
Matériaux métalliques — Essai de dureté Knoop —
Partie 2: Vérification et étalonnage des machines d'essai
Reference number
ISO 4545-2:2017(E)
©
ISO 2017
ISO 4545-2:2017(E)
© ISO 2017, Published in Switzerland
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
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ii © ISO 2017 – All rights reserved
ISO 4545-2:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General conditions . 1
5 Direct verification . 2
5.1 General . 2
5.2 Calibration of the test force . 2
5.3 Verification of the indenter . 3
5.4 Calibration and verification of the diagonal measuring system . 4
5.5 Verification of the testing cycle . 4
5.6 Uncertainty of calibration/verification . 5
6 Indirect verification . 5
6.1 General . 5
6.2 Test force and hardness levels . 5
6.3 Measurement of reference indentations. 5
6.4 Number of indentations . 5
6.5 Verification result . 5
6.6 Repeatability . 6
6.7 Bias . 6
6.8 Uncertainty of calibration/verification . 7
7 Intervals between verifications . 7
8 Verification report/calibration certificate . 7
8.1 Knoop testing machine . 7
8.2 Knoop indenter . 8
Annex A (informative) Uncertainty of the calibration results of the hardness testing system .9
Bibliography .18
ISO 4545-2:2017(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 second edition cancels and replaces the first edition (ISO 4545-2:2005), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— all references have been removed of indentation diagonals <0,020 mm;
— the requirements for the calibration and verification of the measuring system have been revised;
— the requirements for the maximum permissible error in measuring a reference indentation have
been revised;
— the recommendations for inspection and monitoring of the indenter have been moved to ISO 4545-1;
— Annex A has been revised.
A list of all parts in the ISO 4545 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved
INTERNATIONAL STANDARD ISO 4545-2:2017(E)
Metallic materials — Knoop hardness test —
Part 2:
Verification and calibration of testing machines
1 Scope
This document specifies the method of verification and calibration of testing machines for determining
Knoop hardness for metallic materials in accordance with ISO 4545-1.
A direct method of verification and calibration is specified for the testing machine, indenter, and the
diagonal length measuring system. An indir
...
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