EN 61580-2 : methods of measurement for waveguides: part 2: level of intermodulation products: (IEC 1580-2: 1996) / European Commitee for Electrothecnical Standardization
EN 61580-7 : methods of measurement for waveguides: part 7: graphical method for the determination of waveguide performance: (IEC 1580-7: 1996) / European Commitee for Electrothecnical Standardization
EN 61580-9 : methods of measurement for waveguides: part 9: reflection coefficient at rectangular waveguide interfaces: (IEC 1580-9: 1996) / European Commitee for Electrothecnical Standardization
Postal services [documento electrónico] : hybrid mail: document type definitions for customer to operator: a common set of default tags: ENV 14014: July 2001 / European Committee for Standardization