KS C IEC 60601-2-31-2017 Medical electrical equipment — Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
2021KS C IEC 60601-2-31:2021 Medical electrical equipment — Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
2017KS C IEC 60601-2-31:2017 Medical electrical equipment — Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
2008KS C IEC 60601-2-31:2008 Medical electrical equipment-Part 2-31:Particular requirements for the safety of external cardiac pacemakers with internal power source