Ferrite cores - Guide on the limits of surface irregularities - Part 5: Planar-cores (IEC 60424-5:2009); German version EN 60424-5:2009
German title
Ferritkerne - Leitfaden für Grenzwerte von sichtbaren Beschädigungen der Kernoberfläche - Teil 5: Planarkerne (IEC 60424-5:2009); Deutsche Fassung EN 60424-5:2009
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