DS DS/EN 61631
DS DSEN 61631 2002-APR-05 Test method for the mechancal strength of cores made of magnetc oxdes
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This International Standard specifies a test method for the mechanical strength of cores made of magnetic oxides. This test method is suitable for most of the E-cores, ETD-cores and I-cores, but other core types such as U-cores could be tested according to a derived method agreed by the parties concerned.