Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure
NORM herausgegeben am 30.11.1989
Designation standards: ISO 1608-2:1989-ed.2.0
Publication date standards: 30.11.1989
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Kategorie: Technische Normen ISO
Description / Abstract: The considered method of measurement deals with vapours jet vacuum pumps, diffusions pumps and diffusion-ejector pumps. The dependence of the performance of these pumps on the backing pressure can only be completely described be means of a curve relating the inlet and backing pressure over the range of operation. The recommended test dome and the principle of the test equipment are illustrated.