2009IEC 60601-2-5:2009 Medical electrical equipment - Part 2-5: Particular requirements for basic safety and essential performance of ultrasonic physiotherapy equipment
2005IEC 60601-2-5:2005 Medical electrical equipment - Part 2-5: Particular requirements for the safety of ultrasonic physiotherapy equipment
2000IEC 60601-2-5:2000 Medical electrical equipment - Part 2-5: Particular requirements for the safety of ultrasonic physiotherapy equipment
1984IEC 60601-2-5:1984 Medical electrical equipment. Part 2: Particular requirements for the safety of ultrasonic therapy equipment