Fecha de publicación: 01/01/1981 Methods of measurement for equipment used in terrestrial radio-relay systems – Part 3: Simulated systems – Section Three: Measurements for monochrome and colour television transmission IEC 60487-3-3:1981
Fecha de publicación: 01/01/1981 Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Two: Stand-by channel switching equipment IEC 60487-2-2:1981
Fecha de publicación: 01/01/1981 Methods of measurement for equipment used in terrestrial radio-relay systems – Part 3: Simulated systems – Section Two: Measurements in the baseband IEC 60487-3-2:1981
Fecha de publicación: 01/01/1981 Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2-1: Measurements for sub-systems. General IEC 60487-2-1:1981
Fecha de publicación: 01/01/1981 Paper-insulated metal-sheathed cables for rated voltages up to 18/30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables). Part 2: General and construction requirements IEC 60055-2:1981
Fecha de publicación: 01/01/1981 High fidelity audio equipment and systems: Minimum performance requirements. Part 5: Microphones IEC 60581-5:1981
Fecha de publicación: 01/01/1981 Amendment 1 – Direct-current resistive volt ratio boxes IEC 60524:1975/AMD1:1981
Fecha de publicación: 01/08/1981 Amendment 1 – Aircraft electrical filament lamps IEC 60434:1973/AMD1:1981
Fecha de publicación: 01/09/1981 Amendment 1 – D.C. bridges for measuring resistance IEC 60564:1977/AMD1:1981
Fecha de publicación: 01/09/1981 Corrigendum 1 – Environmental testing. Part 2: Tests. Test XA and guidance: Immersion in cleaning solvents IEC 60068-2-45:1980/COR1:1981