# ISO 1608-2:1978 — Withdrawn and superseded ISO standards

For ISO 1608-2:1978, item title is Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure; status code is 9599; successor is ISO 1608-2:1989; withdrawn / published date is 1978-12-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1608-2:1978 _(verified: appears in the quote below)_
- **Item title:** Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 1608-2:1989
- **Withdrawn / published date:** 1978-12-01 _(verified: appears in the quote below)_

## What the source says

> 6206,IS,,ISO 1608-2:1978,Vapour vacuum pumps — Measurement of performance characteristics — Part 2: Measurement of critical backing pressure,Pompes à vide à jet de vapeur — Mesurage des caractéristiques fonctionnelles — Partie 2: Mesurage de la pression critique de refoulement,1978-12-01,1,['23.160'],ISO/TC 112,9599,,[6207],"['en','fr']",3,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).