Over deze norm
This Recommendation is based on current practice on the measurement of emission current from hot cathods for high-vacuum electronic tubes and valves. It should not be regarded as a Recommendation in the sense of a standard, because a more detailed description of the measuring methods is needed if measuring results on the basis of these principles have to be comparable within definite tolerances.
||Elektronenbuizen - Meetmethoden ter bepaling van de elektrische eigenschappen - Deel 13: Meting van de kathode-emissie van hoog-vacuÃ¼mbuizen
||Measurements of the electrical properties of electronic tubes and valves - Part 13: Methods of measurement of emission current from hot cathodes for high-vacuum electronic tubes and valves