Harmonized system of quality assessment for electronic components; blank detail specification: small power transmitting tubes of anode dissipation up to 1 kW
Edition 1977-04

Measurements of the electrical properties of electronic tubes; methods of measurement for television picture tubes
Edition 1973-07

Measurement of the electrical properties of electronic tubes; measurement of noises due to mechanical or acoustic excitations
Edition 1973-07

Internal graticule for oscilloscopes
Edition 1971-04

Measurement of the electrical properties of electronic tubes; method of measurement for cold cathode counting and indicator tubes
Edition 1976-09

Measurements of the electrical properties of electronic tubes and valves; methods of measuring hiss and hum
Edition 1973-06

Measurements of the electrical properties of electronic tubes and valves; methods of measurement of spurious and unwanted electrode currents
Edition 1972-03

Letter symbols in data sheets for electronic tubes
Edition 1971-05

Measurements of the electrical properties of electronic tubes and valves; precautions relating to methods of measurement
Edition 1974-02

Measurement of the electrical properties of electronic tubes; measurement of cross-modulation in case of AM-AM-transfer
Edition 1973-12