13.		EN 41003 : particular safety requirements for equipment to be connected to telecommunication networks / European Commitee for Electrothecnical Standardization Data Publicação: 1993 Tema: Normas
14.		FINAL DRAFT EN 50083 -4 pr A1 : cabled distribution systems for television and sound signals: part 4: passive coaxial wideband distribution equipment / European Commitee for Electrothecnical Standardization Data Publicação: 1993 Tema: Normas
15.		EN 41003 : régles particulières de sécurité pour les matériels destinés à être reliés aux réseaux de télécommunications / Comité Européen de Normalisation Electrotechnique Data Publicação: 1993 Tema: Normas
16.		BS EN 60868 : flickermeter: functional and design specifications: (IEC 868: 1986 + A1: 1990) / European Commitee for Electrothecnical Standardization Data Publicação: 1993 Tema: Normas