ISO 1608-2:1989
Vapour vacuum pumps; measurement of performance characteristics; part 2: measurement of critical backing pressure

Standard No.

ISO 1608-2:1989

Release Date

1989

Published By

International Organization for Standardization (ISO)

Latest

ISO 1608-2:1989

Scope

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.

ISO 1608-2:1989 history

• 1989 ISO 1608-2:1989 Vapour vacuum pumps; measurement of performance characteristics; part 2: measurement of critical backing pressure
• 1978 ISO 1608-2:1978 Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure