This standard covers the methods of testing of magnetic properties (inductance L and quality factor Q) of ferrite aerial rods having substantially circular cross-section and used in broadcast receivers for short and medium wave reception.
The inductance L and the quality factor Q are the inductance and quality factor of the combination of aerial rod and the specified measuring coil.
IS 9946-1981 history
1982IS 9946-1981 Ferrite antenna rod magnetic performance test