EN 60404-15:2012/A1:2017
(Amendment)Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
Magnetische Werkstoffe - Teil 15: Verfahren zur Bestimmung der Permeabilitätszahl schwachmagnetischer Werkstoffe
Matériaux magnétiques - Partie 15: Méthodes de détermination de la perméabilité magnétique relative des matériaux faiblement magnétiques
Magnetni materiali - 15. del: Metode za ugotavljanje relativne magnetne permeabilnosti mehkomagnetnih materialov (IEC 60404-15:2012/A1:2016) - Dopolnilo A1
General Information
- Status
- Published
- Publication Date
- 23-Feb-2017
- Withdrawal Date
- 08-Jan-2020
- Technical Committee
- CLC/SR 68 - Magnetic alloys and steels
- Drafting Committee
- IEC/TC 68 - IEC_TC_68
- Current Stage
- 6060 - Document made available - Publishing
- Start Date
- 24-Feb-2017
- Completion Date
- 24-Feb-2017
Relations
- Effective Date
- 19-Jan-2016
Overview
EN 60404-15:2012/A1:2017 (IEC 60404-15:2012/A1:2016) is a CLC/CENELEC-adopted amendment covering standardized laboratory methods to determine the relative magnetic permeability of feebly magnetic materials. The amendment updates measurement circuits, coil designs and procedural controls for accurate determination of magnetic polarization (J) and permeability using solenoid and moment‑detection methods. It is part of the IEC/EN 60404 series for magnetic materials and was approved in January 2017.
Key topics and technical requirements
- Measurement methods:
- Solenoid method (withdrawal) - specimen inserted into a search coil, magnetized, integrator zeroed, then withdrawn; the induced flux reading yields magnetic polarization.
- Solenoid method (reversing current) - compensated search coil with an air‑flux compensating coil; polarization measured by reversing magnetizing current (reading equals twice the polarization).
- Moment detection coil - used for short cylinders (length:diameter ≈ 1:1) to measure dipole moment and compute J from specimen volume.
- Coil and probe specifications:
- Search coil for withdrawal method: aperture typically 32 mm for specimens ≤30 mm, winding length ~40 mm, end cheeks 75–80 mm, example winding 10 000 turns of 0.2 mm wire (tapped for sensitivity).
- Compensated flux coil: flux coil area ≤ 10× specimen cross‑section, typically >1 000 turns, flux coil length ≤ 20% of specimen length; air flux coil matched to allow cancellation via a variable resistor.
- Measurement controls and calibration:
- Flux integrator calibration uncertainty: ±0.5% or better.
- Demagnetization immediately before testing from a field ≥ 20 kA/m (slow reversal of reducing DC or AC).
- Procedures to avoid errors: rigid coil mounting, electrostatic shielding (e.g., copper), compensation for ambient field fluctuations, averaging over two specimen orientations, and repeatability checks.
- Data and calculations: polarization J is derived from integrator flux readings, coil parameters (turns, area), and specimen geometry; methods for correcting and averaging readings are specified.
Applications and users
- Quality control and acceptance testing of feebly magnetic materials in manufacturing and supply chains.
- Materials laboratories and test houses performing permeability characterization for sectors where low magnetic signature or controlled permeability is critical (e.g., precision instrumentation, medical devices, aerospace and naval components).
- R&D teams evaluating magnetic properties of alloys and steels, and compliance officers ensuring adherence to IEC/EN magnetic materials standards.
Related standards
- IEC 60404 series - international standards for magnetic materials (EN adoption noted).
- IEC/TC 68 (Magnetic alloys and steels) - technical committee responsible for this part.
Keywords: magnetic materials, relative magnetic permeability, feebly magnetic materials, solenoid method, flux integrator, search coil, demagnetization, IEC 60404-15.
Frequently Asked Questions
EN 60404-15:2012/A1:2017 is a amendment published by CLC. Its full title is "Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials". This standard covers: Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
Magnetic materials - Part 15: Methods for the determination of the relative magnetic permeability of feebly magnetic materials
EN 60404-15:2012/A1:2017 is classified under the following ICS (International Classification for Standards) categories: 17.220.01 - Electricity. Magnetism. General aspects; 29.030 - Magnetic materials. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 60404-15:2012/A1:2017 has the following relationships with other standards: It is inter standard links to EN 60404-15:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2017
Magnetni materiali - 15. del: Metode za ugotavljanje relativne magnetne
permeabilnosti mehkomagnetnih materialov (IEC 60404-15:2012/A1:2016) -
Dopolnilo A1
Magnetic materials - Part 15: Methods for the determination of the relative magnetic
permeability of feebly magnetic materials (IEC 60404-15:2012/A1:2016)
Magnetische Werkstoffe - Teil 15: Verfahren zur Bestimmung der Permeabilitätszahl
schwachmagnetischer Werkstoffe (IEC 60404-15:2012/A1:2016)
Matériaux magnétiques - Partie 15: Méthodes de détermination de la perméabilité
magnétique relative des matériaux faiblement magnétiques (IEC 60404-
15:2012/A1:2016)
Ta slovenski standard je istoveten z: EN 60404-15:2012/A1:2017
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 60404-15:2012/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2017
ICS 29.030; 17.220.01
English Version
Magnetic materials - Part 15: Methods for the determination of
the relative magnetic permeability of feebly magnetic materials
(IEC 60404-15:2012/A1:2016)
Matériaux magnétiques - Partie 15: Méthodes de Magnetische Werkstoffe - Teil 15: Verfahren zur
détermination de la perméabilité magnétique relative des Bestimmung der Permeabilitätszahl schwachmagnetischer
matériaux faiblement magnétiques Werkstoffe
(IEC 60404-15:2012/A1:2016) (IEC 60404-15:2012/A1:2016)
This amendment A1 modifies the European Standard EN 60404-15:2012; it was approved by CENELEC on 2017-01-09. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 amendment 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, Serbia, 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
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60404-15:2012/A1:2017 E
European foreword
The text of document 68/531/CDV, future IEC 60404-15:2012/A1, 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:
• latest date by which the document has to be (dop) 2017-10-09
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-01-09
• latest date by which the national
standards conflicting with the
document have to be withdrawn
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 60404-15:2012/A1:2016 was approved by CENELEC as a
European Standard without any modification.
IEC 60404-15 ®
Edition 1.0 2016-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Magnetic materials –
Part 15: Methods for the determination of the relative magnetic permeability of
feebly magnetic materials
Matériaux magnétiques –
Partie 15: Méthodes de détermination de la perméabilité magnétique relative des
matériaux faiblement magnétiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.01; 29.030 ISBN 978-2-8322-3781-6
– 2 – IEC 60404-15:2012/AMD1:2016
© IEC 2016
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:
CDV Report on voting
68/531/CDV 68/544/RVC
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 publication will remain unchanged until
the stability date indicated on the IEC website 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.
___________
4.2 Principle
Replace the first sentence of the first paragraph with the following:
The relative magnetic permeability of a feebly magnetic test specimen is determined from the
magnetic polarization J and the corresponding magnetic field strength H measured using the
circuit shown in Figure 1 or Figure 5, using
Figure 1 – Circuit diagram for the solenoid method
Replace the existing title of Figure 1 with the following:
Figure 1 – Circuit diagram for the solenoid method with withdrawal of test specimen
Add a new Figure 5 with title and key, after Figure 1 and the note located below it, as follows:
IEC 60404-15:2012/AMD1:2016 – 3 –
© IEC 2016
Air flux compensating coil
N
N
Test specimen
Flux coil
R
c
F
S
E
R
A
IEC
Key
A Current measuring device or ammeter
E d.c. power supply
F Flux integrator
N Solenoid
N Compensated search coil
R Variable resistor (controlling magnetizing current)
R Variable resistor (to adjust the output of the air flux compensating coil)
c
S Switch for reversing the current in the solenoid
Figure 5 – Circuit diagram for the solenoid method
with reversing of magnetizing current
Replace the existing Subclause 4.3.2 with the following:
4.3.2 Search coil for the solenoid method with withdrawal of test specimen. For the solenoid
method with withdrawal of test specimen, the search coil shall be wound on a nonmagnetic,
non-conducting former. Typically, for test specimens up to 30 mm in diameter, the internal
diameter of the aperture in the search coil is 32 mm to allow
...
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