CISPR 20 [documento electrónico] : amendement 1
EN 55020/A1 : sound and television broadcast receivers and associated equipment: immunity characteristics: limits and methods of measurement: (CISPR 20: 2002/A1: 2002) / European Committee for Electrotechnical Standardization
CISPR 24 : amendement 2
EN 60081 : tubular fluorescent lamps for general lighting service: (IEC 81 (1984) edition + amdt 1 (1987) + amdt 2 (1988) / European Commitee for electrothecnical Standardization