Rivisto
IEC 60399:1972 ED1
IEC 60399:1972/AMD1:1997 ED1
IEC 60399:1972/AMD2:1999 ED1
IEC 60399:1972+AMD1:1997+AMD2:1999 CSV ED1.2
Attuale
IEC 60399:2004 ED2
IEC 60399:2004/AMD1:2008 ED2