What are the domestic and international EMC (electromagnetic compatibility) standards for defibrillators?

Defibrillators (including integrated monitor-defibrillator units) must meet GB 9706.1, YY 0505 (domestic), and IEC 60601-1-2 (international) EMC standards. Their unique characteristic lies in their internal high-voltage charging and discharging circuits (up to several kilovolts), which generate extremely strong transient electromagnetic pulses. The standards require that during discharge, the defibrillator's monitoring function (ECG) must not be severely interfered with and rendered ineffective, and that the radiated and conducted emissions generated during discharge be controlled within limits to avoid affecting surrounding equipment. Furthermore, the device must have sufficient immunity to external electrostatic discharge, surges, and radio frequency interference during charging and standby states.