EN 61580-1 : methods of measurement for waveguides: part 1: decoupling and rotation of the plane of polarization: (IEC 1580-1: 1996) / European Commitee for Electrothecnical Standardization
EN 61580-2 : methods of measurement for waveguides: part 2: level of intermodulation products: (IEC 1580-2: 1996) / European Commitee for Electrothecnical Standardization
EN 61580-8 : methods of measurement for waveguides: part 8: waveguide power holding capability: (IEC 1580-8: 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