IEC 60060 High-voltage test techniques - ALL PARTS
IEC 60073:1996 Basic and safety principles for man-machine interface, marking and identification - Coding principles for indication devices and actuators
IEC 60099-1:1991 Surge arresters; part 1: non-linear resistor type gapped surge arresters for a.c. systems
IEC 60112:1979 Recommended method for determining the comparative tracking index of solid insulating materials under moist conditions