Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor
Document status: Active
Measurements of the electrical properties of electronic tubes and valves - Part 5: Methods of measuring hiss and hum
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Measurements of the electrical properties of electronic tubes and valves. Part 6: Methods of application of mechanical shock (impulse) excitation to electronic tubes and valves
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Measurements of the electrical properties of electronic tubes and valves. Part 7: Measurement of equivalent noise resistance
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Measurements of the electrical properties of electronic tubes and valves - Part 8: Measurement of cathode heating time and heater warm-up time
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Corrigendum 1 - Measurements of the electrical properties of electronic tubes and valves. Part 8: Measurement of cathode heating time and heater warm-up time
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Measurements of the electrical properties of electronic tubes and valves. Part 9: Methods of measuring the cathode-interface impedance
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Identification by hour numbers of the phase conductors of 3-phase electric systems
Document status: [ Withdrawn ]
Designation of phase differences by hour numbers in three-phase AC systems
Document status: Active
Hollow metallic waveguides. Part 1: General requirements and measuring methods
Document status: [ Withdrawn ]
