# ISO 1607-1:1993 — Withdrawn and superseded ISO standards

For ISO 1607-1:1993, item title is Positive-displacement vacuum pumps — Measurement of performance characteristics — Part 1: Measurement of volume rate of flow (pumping speed); status code is 9599; successor is ISO 21360-2:2012 | ISO/CD 1607-1; withdrawn / published date is 1993-11-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 1607-1:1993 _(verified: appears in the quote below)_
- **Item title:** Positive-displacement vacuum pumps — Measurement of performance characteristics — Part 1: Measurement of volume rate of flow (pumping speed) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21360-2:2012 | ISO/CD 1607-1
- **Withdrawn / published date:** 1993-11-25 _(verified: appears in the quote below)_

## What the source says

> 6200,IS,,ISO 1607-1:1993,Positive-displacement vacuum pumps — Measurement of performance characteristics — Part 1: Measurement of volume rate of flow (pumping speed),Pompes primaires volumétriques à vide — Mesurage des caractéristiques fonctionnelles — Partie 1: Mesurage du débit-volume,1993-11-25,2,['23.160'],ISO/TC 112,9599,[6199],"[50844,36111]","['en','fr']",3,<p>The method of determining the volume of gas which flows in unit time through the pump inlet are specified. The considered pumps discharge the gas against atmosphere pressure and achieve a limiting inlet pressure less than 100 pa in one stage.</p>

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).