90.93 Standard confirmed Oct 24, 2022
ISO
ISO/TC 112 Vacuum technology
International Standard
23.160 Vacuum technology
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.
WITHDRAWN
ISO 1608-2:1978
PUBLISHED
ISO 1608-2:1989
90.93
Standard confirmed
Oct 24, 2022
IN_DEVELOPMENT
ISO/NP 21360-7