Amendment 1 - Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties

Amendement 1 - Matériaux magnétiques - Partie 5: Aimants permanents (magnétiques durs) - Méthodes de mesure des propriétés magnétiques

General Information

Status
Published
Publication Date
15-Feb-2007
Drafting Committee
WG 2 - TC 68/WG 2
Current Stage
DELPUB - Deleted Publication
Start Date
16-Apr-2015
Completion Date
26-Oct-2025

Relations

Effective Date
05-Sep-2023

Overview

IEC 60404-5:1993/AMD1:2007 is an important amendment to the international standard focused on magnetic materials, specifically permanent magnet (magnetically hard) materials. This amendment, published by the International Electrotechnical Commission (IEC), refines and supplements the measurement methods for assessing the magnetic properties of permanent magnets. It addresses technical enhancements and introduces clarifications to ensure precise, repeatable, and standardized testing procedures.

Permanent magnets are essential components in many industries, including electronics, automotive, and renewable energy. Accurate measurement of their magnetic properties is critical for quality control, product development, and performance evaluation.

Key Topics

  • Measurement Methods: The amendment improves established techniques for determining key magnetic properties such as coercivity, remanence, and maximum energy product (BH)max.
  • Temperature Influence: A newly incorporated informative Annex B emphasizes the influence of ambient temperature on test results. It provides temperature coefficient data for different magnet materials, highlighting the necessity of temperature control during testing.
  • Demagnetization Curves: Refined instructions are provided on the determination of demagnetization curves, detailing the use of electromagnets, superconducting coils, and pulse magnetizers.
  • Test Equipment and Circuitry: Detailed descriptions with updated diagrams clarify the measuring circuits utilized for magnetic measurement.
  • Normative References: Amendments remove date restrictions on referenced documents to ensure the application of the latest editions.
  • Bibliography: Added references to related standards such as IEC 61807 and IEC 62331 offer guidance on high-temperature measurements and pulsed field magnetometry.

Applications

This amendment is essential for professionals and laboratories involved in:

  • Magnet Quality Assurance
    Ensuring that permanent magnets meet industry standards and perform reliably in demanding environments.

  • Research and Development
    Facilitating the development of new magnetic materials with defined and controlled magnetic properties.

  • Industrial Manufacturing
    Providing standard procedures for magnetic testing that support production consistency and compliance.

  • Temperature-Sensitive Magnet Testing
    Guidance in controlling ambient temperature to reduce inaccuracies when testing magnets like REFeB and hard ferrites, which show significant temperature-dependent behavior.

  • Calibration of Magnetic Measurement Equipment
    Updating measurement techniques and test circuits for improved accuracy and repeatability, essential in precision engineering sectors.

Related Standards

  • IEC 61807: Magnetic properties of magnetically hard materials at elevated temperatures – Methods of measurement. This standard complements IEC 60404-5:2007 by addressing testing under high-temperature conditions.
  • IEC 62331: Pulsed field magnetometry. Provides methods for measuring magnetic properties via pulsed magnetic fields, useful for materials with high coercivity values where conventional electromagnets may be insufficient.
  • IEC 60404 series: Covers various magnetic materials and related measurement techniques, forming a comprehensive framework for magnetic standards.

Keywords: IEC 60404-5, magnetic materials, permanent magnets, magnetic properties measurement, coercivity, demagnetization curve, ambient temperature influence, REFeB magnets, pulsed field magnetometry, IEC standards, magnetic testing methods, quality control in magnetics.

Standard

IEC 60404-5:1993/AMD1:2007 - Amendment 1 - Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties Released:2/16/2007 Isbn:2831890276

English and French language
11 pages
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Frequently Asked Questions

IEC 60404-5:1993/AMD1:2007 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 1 - Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties". This standard covers: Amendment 1 - Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties

Amendment 1 - Magnetic materials - Part 5: Permanent magnet (magnetically hard) materials - Methods of measurement of magnetic properties

IEC 60404-5:1993/AMD1:2007 is classified under the following ICS (International Classification for Standards) categories: 17.220.20 - Measurement of electrical and magnetic quantities; 29.030 - Magnetic materials. The ICS classification helps identify the subject area and facilitates finding related standards.

IEC 60404-5:1993/AMD1:2007 has the following relationships with other standards: It is inter standard links to IEC 60404-5:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

IEC 60404-5:1993/AMD1:2007 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


NORME CEI
INTERNATIONALE
IEC
60404-5
INTERNATIONAL
STANDARD
AMENDEMENT 1
AMENDMENT 1
2007-02
Amendement 1
Matériaux magnétiques –
Partie 5:
Aimants permanents (magnétiques durs) –
Méthodes de mesure des propriétés magnétiques

Amendment 1
Magnetic materials –
Part 5:
Permanent magnet (magnetically hard) materials –
Methods of measurement of magnetic properties
© IEC 2007 Droits de reproduction réservés ⎯ Copyright - all rights reserved
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
F
Commission Electrotechnique Internationale
PRICE CODE
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

– 2 – 60404-5 Amend. 1 © CEI:2007
AVANT-PROPOS
Le présent amendement a été établi par le comité d'études 68 de la CEI: Matériaux
magnétiques tels qu'alliages et aciers.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
68/331/FDIS 68/340/RVD
Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant
abouti à l'approbation de cet amendement.
Le comité a décidé que le contenu de cet amendement et de la publication de base ne sera
pas modifié avant la date de maintenance indiquée sur le site web de la CEI sous
"http://webstore.iec.ch" dans les données relatives à la publication recherchée. A cette date,
la publication sera
• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
_____________
Page 2
SOMMAIRE
Ajouter la ligne suivante à la fin:
Annexe B (informative) Influence de la température ambiante sur les résultats de mesures

Page 8
1.2 Références normatives
Les documents de référence suivants sont indispensables pour l'application du présent
document. Pour les références datées, seule l'édition citée s'applique. Pour les références
non datées, la dernière édition du document de référence s'applique (y compris les éventuels
amendements).
Supprimer les dates aux 4 références datées.

60404-5 Amend. 1 © IEC:2007 – 3 –
FOREWORD
This amendment has been prepared by IEC technical committee 68: Magnetic alloys and steels.
The text of this amendment is based on the following documents:
FDIS Report on voting
68/331/FDIS 68/340/RVD
Full information on the voting for the approval of this amendment can be found in the report on
voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
Page 3
CONTENTS
Add the following line at the end:
Annex B (informative) Influence of the ambient temperature on measurement results

Page 9
1.2 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.
Delete the dates to the 4 dated references.

– 4 – 60404-5 Amend. 1 © CEI:2007
Page 18
8 Détermination de la courbe de désaimantation
ème
Insérer à la fin de la première phrase du 3 alinéa:
«(voir Annexe B) »
ème
et après le 3 alinéa la note suivante:
« NOTE Pour les méthodes de mesures (non normatives) à températures élevées, voir la CEI 61807. »
8.1 Principe de la détermination de la courbe de désaimantation, l’éprouvette étant
aimantée dans l'électro-aimant
Ajouter à la fin du premier alinéa:
« (voir Figure 2) »
Page 20
8.2 Principe de la détermination de la courbe de désaimantation, l’éprouvette étant
aimantée dans une bobine supraconductrice ou un banc d’aimantation à
impulsion
Ajouter la phrase suivante à la fin du premier alinéa:
« Le champ magnétique nécessaire à la saturation dépend du type du matériau magnétique
de l’éprouvette et de sa coercitivité. »
ème
Insérer la note suivante après le 4 alinéa:
« NOTE Le champ magnétique qu’on peut obtenir en utilisant un électro-aimant peut ne pas être suffisant pour
mesurer les valeurs très élevées de la coercitivité relative à la polarisation magnétique, H . Dans un tel cas, la
cJ
mesure peut être réalisée en utilisant d’autres méthodes telles qu’une bobine supraconductrice ou la méthode du
champ impulsionnel (voir le CEI 62331). Toutefois, ces méthodes ne sont pas normatives. »

9.2 Produit (BH)
max
A la page 22, à la fin de a), remplacer « (voir Figure 2) » par:
« (voir Figure 3) »
9.4 Détermination de la droite de recul et de la perméabilité de recul
Dans la première phrase, remplacer « (Figure 3) » par:
« (Figure 4) »
60404-5 Amend. 1 © IEC:2007 – 5 –
Page 19
8 Determination of the demagnetization curve
rd
Insert at the end of the first sentence of the 3 paragraph:
“(see Annex B)”
rd
and after the 3 paragraph the following note:
“NOTE For the methods of (non-normative) measurements at elevated temperatures, see IEC 61807”.
8.1 Principle of determination of the demagnetization curve, test specimen magnetized
in the electromagnet
Add at the end of the first paragraph:
“(see Figure 2)”
Page 21
8.2 Principle of determination of the demagnetization curve, test specimen magnetized
in a superconducting coil or pulse magnetizer
Add the following sentence at the end of the first paragraph:
“The magnetic field strength required for saturation depends on the type of the magnetic
material of the test specimen and on its coercivity.”
th
Insert the foll
...

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