# ISO 11551:2003 — Withdrawn and superseded ISO standards For ISO 11551:2003, item title is Optics and optical instruments — Lasers and laser-related equipment — Test method for absorptance of optical laser components; status code is 9599; successor is ISO/NP 11551 | ISO 11551:2019; withdrawn / published date is 2003-11-24, recorded from its source on 2026-08-05. - **Identifier:** ISO 11551:2003 _(verified: appears in the quote below)_ - **Item title:** Optics and optical instruments — Lasers and laser-related equipment — Test method for absorptance of optical laser components _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/NP 11551 | ISO 11551:2019 - **Withdrawn / published date:** 2003-11-24 _(verified: appears in the quote below)_ ## What the source says > 32097,IS,,ISO 11551:2003,Optics and optical instruments — Lasers and laser-related equipment — Test method for absorptance of optical laser components,Optique et instruments d'optique — Lasers et équipements associés aux lasers — Méthode d'essai du facteur d'absorption des composants optiques pour lasers,2003-11-24,2,['31.260'],ISO/TC 172/SC 9,9599,[19505],"[52956,69228]","['en','fr']",13,
ISO 11551:2003 specifies procedures and techniques for obtaining comparable values for the absorptance of optical laser components.
## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).