# ISO 9022-18:1994 — Withdrawn and superseded ISO standards

For ISO 9022-18:1994, item title is Optics and optical instruments — Environmental test methods — Part 18: Combined damp heat and low internal pressure; status code is 9599; successor is ISO 9022-23:2013; withdrawn / published date is 1994-07-07, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9022-18:1994 _(verified: appears in the quote below)_
- **Item title:** Optics and optical instruments — Environmental test methods — Part 18: Combined damp heat and low internal pressure _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9022-23:2013
- **Withdrawn / published date:** 1994-07-07 _(verified: appears in the quote below)_

## What the source says

> 16583,IS,,ISO 9022-18:1994,Optics and optical instruments — Environmental test methods — Part 18: Combined damp heat and low internal pressure,Optique et instruments d'optique — Méthodes d'essais d'environnement — Partie 18: Essai combiné chaleur humide-pression interne basse,1994-07-07,1,['37.020'],ISO/TC 172/SC 1,9599,,[63138],"['en','fr']",6,"<p>Specifies methods of testing of optical instruments and instruments containing optical components, under equivalent conditions, for their ability to resist combined damp heat and low internal pressure. The purpose of testing is to investigate to what extent the optical, thermal, chemical or electrical performance characteristics are affected by th

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).