Magnetic materials - Part 6: Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens
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NEW!IEC 60404-6:2018 is available as IEC 60404-6:2018 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60404-6:2018 specifies methods for the measurement of AC magnetic properties of soft magnetic materials, other than electrical steels and soft ferrites, in the frequency range 20 Hz to 100 kHz. The materials covered by this part of IEC 60404 include those speciality alloys listed in IEC 60404-8-6, amorphous and nano-crystalline soft magnetic materials, pressed and sintered and metal injection moulded parts such as are listed in IEC 60404-8-9, cast parts and magnetically soft composite materials. The object of this part is to define the general principles and the technical details of the measurement of the magnetic properties of magnetically soft materials by means of ring methods. For materials supplied in powder form, a ring test specimen is formed by the appropriate pressing method for that material. The measurement of the DC magnetic properties of soft magnetic materials is made in accordance with the ring method of IEC 60404-4. The determinations of the magnetic characteristics of magnetically soft components are made in accordance with IEC 62044-3. This edition includes the following significant technical changes with respect to the previous edition:
a) adaption to modern measurement and evaluation methods, in particular the introduction of the widely spread digital sampling method for the acquisition and evaluation of the measured data;
b)limitation of the frequency range up to 100 kHz;
c) deletion of Clause 7 of the second edition that specified the measurement of magnetic properties using a digital impedance bridge;
d) addition of a new Clause 7 on the measurement of the specific total loss by the wattmeter method, including an example of the application of the digital sampling method;
e) addition of an informative annex on the technical details of the digital sampling technique for the determination of magnetic properties.
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EN 60404-2:1998 Magnetic materials - Part 2: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame
EN 60404-4:1997 Magnetic materials - Part 4: Methods of measurement of d.c. magnetic properties of magnetically soft materials
EN 60404-8-6:2017 Magnetic materials - Part 8-6: Specifications for individual materials - Soft magnetic metallic materials
EN 60404-2:1998 Magnetic materials - Part 2: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of an Epstein frame
EN 60404-4:1997 Magnetic materials - Part 4: Methods of measurement of d.c. magnetic properties of magnetically soft materials
EN 60404-8-6:2017 Magnetic materials - Part 8-6: Specifications for individual materials - Soft magnetic metallic materials
EN 62044-3:2001 Cores made of soft magnetic materials - Measuring methods - Part 3: Magnetic properties at high excitation level
EN IEC 62044-3:2023 Cores made of soft magnetic materials - Measuring methods - Part 3: Magnetic properties at high excitation level
IEC 60050-121:1998 International Electrotechnical Vocabulary (IEV) - Part 121: Electromagnetism
IEC 60050-221:1990 International Electrotechnical Vocabulary (IEV) - Part 221: Magnetic materials and components
ISO/IEC Guide 98-3:2008 Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)