1. IEC 60654-2:1979/AMD1:1992 Amendment 1 - Operating conditions for industrial-process measurement and control equipment. Part 2: Power

2. IEC 60660:1999 Insulators - Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 000 V up to but not including 300 kV

3. IEC 60645-4:1994 Audiometers - Part 4: Equipment for extended high-frequency audiometry

4. IEC 60645-7:2009 Electroacoustics - Audiometric equipment - Part 7: Instruments for the measurement of auditory brainstem responses

5. IEC 60650:1979 Analogue counting ratemeters. Characteristics and test methods

6. IEC TR 60663:1980 Planning of (single-sideband) power line carrier systems

7. IEC 60654-3:1983 Operating conditions for industrial-process measurement and control equipment - Part 3: Mechanical influences

8. IEC 60654-2:1979 Operating conditions for industrial-process measurement and control equipment. Part 2: Power

9. IEC 60654-4:1987 Operating conditions for industrial-process measurement and control equipment. Part 4: Corrosive and erosive influences

10. IEC TR 60649:2007 Calculation of maximum external diameter of cables for indoor installations