DS DS/EN 60404-5
DS DSEN 60404-5 2007-DEC-05 Magnetc materals - Part 5 Permanent magnet magnetcally hard materals - Methods of measurement of magnetc propertes
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Applies to magnetically hard materials only. The described method makes use of a closed loop simulating a ring. Two alternative methods are given for intrinsic coercivity up to and including 600 kA/m and one for materials with higher intrinsic coercivity (e.g. rare earth cobalt alloys).