EN 60404-5:2015

SLOVENSKI STANDARD
01-september-2015
1DGRPHãþD
SIST EN 60404-5:2008
Magnetni materiali - 5. del: Materiali za permanentne (trdomagnetne) magnete -
Metode za meritve magnetnih lastnosti
Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods
of measurement of magnetic properties
Magnetische Werkstoffe - Teil 5: Dauermagnet- (hartmagnetische) Werkstoffe -
Verfahren zur Messung magnetischer Eigenschaften
Matériaux magnétiques - Partie 5: Aimants permanents (magnétiques durs) - Méthodes
de mesure des propriétés magnétiques
Ta slovenski standard je istoveten z: EN 60404-5:2015
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
29.030 Magnetni materiali Magnetic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60404-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 17.220.20; 29.030 Supersedes EN 60404-5:2007
English Version
Magnetic materials - Part 5: Permanent magnet (magnetically
hard) materials - Methods of measurement of magnetic
properties
(IEC 60404-5:2015)
Matériaux magnétiques - Partie 5: Aimants permanents Magnetische Werkstoffe - Teil 5: Dauermagnet-
(magnétiques durs) - Méthodes de mesure des propriétés (hartmagnetische) Werkstoffe - Verfahren zur Messung
magnétiques magnetischer Eigenschaften
(IEC 60404-5:2015) (IEC 60404-5:2015)
This European Standard was approved by CENELEC on 2015-05-21. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60404-5:2015 E
Foreword
The text of document 68/497/FDIS, future edition 3 of IEC 60404-5, prepared by IEC/TC 68 "Magnetic
alloys and steels" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
(dop) 2016-02-21
• latest date by which the document has to be implemented at
national level by publication of an identical national
standard or by endorsement
(dow) 2018-05-21
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document supersedes EN 60404-5:2007.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60404-5:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :
IEC 60404-8-1 NOTE Harmonized as EN 60404-8-1.

- 3 - EN 60404-5:2015
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60050 series International electrotechnical vocabulary - -

IEC 60404-5 ®
Edition 3.0 2015-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Magnetic materials –
Part 5: Permanent magnet (magnetically hard) materials – Methods of

measurement of magnetic properties

Matériaux magnétiques –
Partie 5: Aimants permanents (magnétiques durs) – Méthodes de mesure des

propriétés magnétiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.20; 29.030 ISBN 978-2-8322-2593-6

– 2 – IEC 60404-5:2015  IEC 2015
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Electromagnet and conditions for magnetization . 6
4.1 General . 6
4.2 Geometrical conditions . 8
4.3 Electromagnetic conditions . 8
5 Test specimen . 9
6 Determination of the magnetic flux density . 10
7 Determination of the magnetic polarization . 10
8 Measurement of the magnetic field strength. 11
9 Determination of the demagnetization curve . 12
9.1 General . 12
9.2 Principle of determination of the demagnetization curve, test specimen
magnetized in the electromagnet . 12
9.3 Principle of determination of the demagnetization curve, test specimen
magnetized in a superconducting coil or pulse magnetizer . 13
10 Determination of the principal characteristics . 14
10.1 Remanent flux density . 14
10.2 (BH) product . 14
max
10.3 Coercivities H and H . 14
cB cJ
10.4 Determination of the recoil line and the recoil permeability . 14
11 Reproducibility . 15
12 Test report . 15
Annex A (normative) Influence of the air-gap between the test specimen and the pole
pieces . 17
Annex B (informative) Influence of the ambient temperature on measurement results . 18
Bibliography . 19

Figure 1 – Demagnetization curve showing (BH) point . 7
max
Figure 2 – Schematic diagram of electromagnet. 8
Figure 3 – Measuring circuit (schematic) . 13
Figure 4 – Demagnetization curve and recoil loop . 15
Figure A.1 – Air-gap . 17

Table 1 – Reproducibility of the measurement of the magnetic characteristics of
permanent magnet materials . 15
Table A.1 – d/l ratios . 17
Table B.1 – Temperature coefficients of B and H of permanent magnet materials . 18
r cJ
IEC 60404-5:2015  IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
MAGNETIC MATERIALS –
Part 5: Permanent magnet (magnetically hard) materials –
Methods of measurement of magnetic properties

FOREWORD
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International Standard IEC 60404-5 has been prepared by IEC technical committee 68:
Magnetic alloys and steels.
This third edition cancels and replaces the second edition published in 1993 and
Amendment 1:2007. This edition constitutes a technical revision.
...