# ISO 9170:1990 — Withdrawn and superseded ISO standards

For ISO 9170:1990, item title is Terminal units for use in medical gas pipeline systems; status code is 9599; successor is ISO 9170-1:1999 | ISO 9170-2:1999; withdrawn / published date is 1990-10-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9170:1990 _(verified: appears in the quote below)_
- **Item title:** Terminal units for use in medical gas pipeline systems _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9170-1:1999 | ISO 9170-2:1999
- **Withdrawn / published date:** 1990-10-11 _(verified: appears in the quote below)_

## What the source says

> 16768,IS,,ISO 9170:1990,Terminal units for use in medical gas pipeline systems,Prises murales utilisées dans des réseaux de distribution de gaz médicaux,1990-10-11,1,['11.040.10'],ISO/TC 121/SC 6,9599,,"[26351,27252]","['en','fr']",15,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).