ISO 1608-2:1989

Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure

Publication date: Nov 30, 1989

General information

Current stage: 90.93 Effective date: Oct 24, 2022

Originator: ISO

Owner: ISO/TC 112

Type: International Standard

ICS: 23.160

Languages: French English

Buying

Status: Published

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 1608-2:1978

NOW

PUBLISHED
ISO 1608-2:1989
90.93 Standard confirmed
Oct 24, 2022

REVISED BY

IN_DEVELOPMENT
ISO/NP 21360-7