DIN IEC 60404-3:2010-05

The object of this part is to define the general principles and the technical details of the measurement of the magnetic properties of magnetic sheets by means of a single sheet tester. This part of IEC 404 is applicable at power frequencies to: a) grain oriented magnetic sheet and strip: for the measurement between 1,0 T and 1,8 T and for the measurement up to peak values of magnetic field strength of 1000 A/m. b) non-oriented magnetic sheet and strip: for the measurement between 0,8 T and 1,5 T and for the measurement up to peak values of magnetic field strength of 10000 A/m. The single sheet tester is applicable to test specimens obtained from magnetic sheets and strips of any quality. The magnetic characteristics are determined for a sinusoidal induced voltage, for specified peak values of magnetic polarization and for a specified frequency. The measurements are made at an ambient temperatur of 23 °C plus/minus 5 °C on test specimens which have first been demagnetized.