NF C28-906:2004 Magnetic materials - Part 6 : methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 200 kHz by the use of ring specimens.
2004NF C28-906:2004 Magnetic materials - Part 6 : methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 200 kHz by the use of ring specimens.