1999IEC 60950:1999 Safety of information technology equipment
1995IEC 60950/AMD3:1995 Safety of information technology equipment, including electrical business equipment; Amendment 3
1993IEC 60950/AMD2:1993 Safety of information technology equipment, including electrical business equipment; amendment 2
1992IEC 60950/AMD1:1992 Safety of information technology equipment, including electrical business equipment; amendment 1
1991IEC 60950:1991 Safety of information technology equipment, including electrical business equipment
IEC 60950/AMD2:1993 Safety of information technology equipment, including electrical business equipment; amendment 2 was changed to IEC 60950:1999 Safety of information technology equipment.