scope:

This standard is applicable to grain oriented magnetic sheet for magnetic flux densities between 1 and 1.8 T and to non-oriented magnetic sheet for magnetic flux densities between 0.8 and 1.5 T, at power frequencies. The object of this standard is to define the general principles of the method of measurement of specific total loss of magnetic sheets by means of a single sheet tester, also to describe a recommended apparatus. This method shall be considered only as a complementary method to the 25 cm Epstein frame method, described in IEC Publication 404-2: Magnetic Materials, Part 2: Methods of Measurement of Magnetic, Electrical and Physical Properties of Magnetic Sheet and Strip, which alone constitutes the reference method.