Magnetic materials - Part 3: Methods of measurement of the magnetic properties of electrical steel strip and sheet by means of a single sheet tester (IEC 60404-3:1992 + A1:2002 + A2:2009)
磁性材料.第3部分:用单片测试仪测量电工钢带和薄板磁性的方法(IEC 60404-3-1992+A1-2002+A2-2009)