# ISO 11990:1999 — Withdrawn and superseded ISO standards For ISO 11990:1999, item title is Optics and optical instruments — Lasers and laser-related equipment — Determination of laser resistance of tracheal tube shafts; status code is 9599; successor is ISO 11990:2003; withdrawn / published date is 1999-07-22, recorded from its source on 2026-08-05. - **Identifier:** ISO 11990:1999 _(verified: appears in the quote below)_ - **Item title:** Optics and optical instruments — Lasers and laser-related equipment — Determination of laser resistance of tracheal tube shafts _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 11990:2003 - **Withdrawn / published date:** 1999-07-22 _(verified: appears in the quote below)_ ## What the source says > 20618,IS,,ISO 11990:1999,Optics and optical instruments — Lasers and laser-related equipment — Determination of laser resistance of tracheal tube shafts,Optique et instruments d'optique — Lasers et équipements associés aux lasers — Détermination de la résistance au laser des tubes trachéaux,1999-07-22,1,"['11.040.99','31.260']",ISO/TC 172/SC 9,9599,,[33112],"['en','fr']",9, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).