1. IEC 60151-5:1964 (scan) Measurements of the electrical properties of electronic tubes and valves - Part 5: Methods of measuring hiss and hum

2. IEC 60151-6:1965 Measurements of the electrical properties of electronic tubes and valves - Part 6: Methods of application of mechanical shock (impulse) excitation to electronic tubes and valves

3. IEC 60151-7:1964 Measurements of the electrical properties of electronic tubes and valves - Part 7: Measurement of equivalent noise resistance

4. IEC 60151-8:1966 Measurements of the electrical properties of electronic tubes and valves - Part 8: Measurement of cathode heating time and heater warm-up time

5. IEC 60151-9:1966 Measurements of the electrical properties of electronic tubes and valves - Part 9: Methods of measuring the cathode-interface impedance

6. IEC 60152:1963 Identification by hour numbers of the phase conductors of 3-phase electric systems

7. IEC 60153-1:2016 Hollow metallic waveguides - Part 1: General requirements and measuring methods

8. IEC 60153-2:2016 Hollow metallic waveguides - Part 2: Relevant specifications for ordinary rectangular waveguides

9. IEC 60153-3:1964 Hollow metallic waveguides - Part 3: Relevant specifications for flat rectangular waveguides

10. IEC 60153-4:1973 Hollow metallic waveguides - Part 4: Relevant specifications for circular waveguides