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Measurements of the electrical properties of electronic tubes and valves. Part 24: Methods of measurement of cathode-ray charge-storage tubes

Measurements of the electrical properties of electronic tubes and valves. Part 25: Methods of measurement of Geiger-Mueller counter tubes

Measurements of the electrical properties of electronic tubes and valves. Part 26: Methods of measurement for camera tubes

Measurements of the electrical properties of electronic tubes and valves. Part 27: Methods of measurement for inter modulation products in transmitting tubes

Measurements of the electrical properties of electronic tubes and valves. Part 28: Methods of measurement of colour television picture tubes

Measurements of the electrical properties of electronic tubes and valves - Part 2: Measurement of heater or filament current

Measurements of the electrical properties of electronic tubes and valves - Part 3: Measurement of equivalent input and output admittances

Measurements of the electrical properties of electronic tubes and valves - Part 4: Methods of measuring noise factor

Measurements of the electrical properties of electronic tubes and valves - Part 5: Methods of measuring hiss and hum

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

Measurements of the electrical properties of electronic tubes and valves. Part 7: Measurement of equivalent noise resistance

Measurements of the electrical properties of electronic tubes and valves. Part 9: Methods of measuring the cathode-interface impedance

Designation of phase differences by hour numbers in three-phase AC systems

Hollow metallic waveguides - Part 1: General requirements and measuring methods

Hollow metallic waveguides - Part 2: Relevant specifications for ordinary rectangular waveguides

Hollow metallic waveguides - Part 2: Relevant specifications for ordinary rectangular waveguides

Hollow metallic waveguides. Part 3: Relevant specifications for flat rectangular waveguides

Hollow metallic waveguides - Part 4: Relevant specifications for circular waveguides

Hollow metallic waveguides - Part 7: Relevant specifications for square waveguides

Flanges for waveguides - Part 1: General requirements