HD 624 .8 S1/A1 : materials used in communication cables: part 8: filling compounds for filled cables: / European Commitee for Electrothecnical Standardization
Information technology : high-performance parallel interface
ISO/IEC 9314-3 : Information processing systems - fibre distributed data interface (FDDI): Part 3: physical layer medium dependent (PMD): / Commission Electrotechnique Internationale
Guia geral interpretativo da norma NP EN 45 001 : acreditação de entidades: LAB / G00 (projecto 3) / Instituto Português da Qualidade