1. IEC 60404-6:2003 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
2. PN-EN 60404-2:2003/A1:2008 Materiały magnetyczne – Część 2: Metody pomiaru własności magnetycznych stalowych blach i taśm elektrotechnicznych przy użyciu aparatu Epsteina
3. IEC 404-3:1999; Magnetic materials. Methods of measurements of soft magnetic properties of electrical steel and type with the use of single sheet tester
4. Product Catalogue, Electrical Steel Tester C 510, http://www.brockhaus.com Brockhaus Messtechnik