EN 60094-5 /A1 : magnetic tape sound recording and reproducing systems: part 5: electrical magnetic tape properties: (IEC 94-5: 1988/A1: 1996) / European Commitee for Electrothecnical Standardization
EN 60094-7/A1 : magnetic tape sound recording and reproducing systems: part 7: cassette for tape records and domestic use: (IEC 94-7: 1986/A1: 1996) / European Commitee for Electrothecnical Standardization
EN 60835-2-8/A1 : methods of measurements for equipment used in digital microwave radio transmission systems: part 2: measurements on terrestrial radio-relay systems: section 8: adaptive equalizer: (IEC 835-2-8:1993/A1: 1996) / European Commitee for Electrothecnical Standardization