HD 466.6 S2 : methods of measurement for radio equipment used in the mobile services: part 6: selective-calling and data equipment: (IEC 489-6: 1987 + A1: 1989) / European Commitee for Electrothecnical Standardization
HD 560 .3 S1 : methods of measurement on radio receivers for various classes of emission: part 3: receivers for amplitude-modulated sound-broadcasting emissions: (IEC 315-3: 1989) / European Commitee for Electrothecnical Standardization
HD 608 S1 : Juillet 1992: specification générique pour câbles multiconducteurs à paires symétriques et quartes pour transmission numérique / Comité Européen de Normalisation Electrotechnique
HD 609 S1 : November 1995: sectional specification for equipment cables to be used for digital and analogue communication / European Commitee for Electrothecnical Standardization