Ferrite cores - Guide on the limits of surface irregularities - Part 3: ETD-cores and E-cores (IEC 60424-3:1999); German version EN 60424-3:1999— 10 стр.
Magnetic oxide cores (ETD-cores) intended for use in power supply applications - Dimensions (IEC 61185:1992 + A1:1995); German version EN 61185:1997— 14 стр.
Ferrite cores - Guide on the limits of surface irregularities - Part 1: General specification (IEC 60424-1:1999); German version EN 60424-1:1999— 6 стр.
Ferrite cores - Guidelines on the limits of surface irregularities - Part 3: ETD-cores, EER-cores, EC-cores and E-cores (IEC 60424-3:2015); German version EN 60424-3:2016— 15 стр.
Ferrite cores - Guidelines on the limits of surface irregularities - Part 3: ETD-cores, EER-cores, EC-cores and E-cores (IEC 60424-3:2015); German version EN 60424-3:2016— 15 стр.