# ISO 291:2005 — Withdrawn and superseded ISO standards For ISO 291:2005, item title is Plastics — Standard atmospheres for conditioning and testing; status code is 9599; successor is ISO 291:2008; withdrawn / published date is 2005-11-17, recorded from its source on 2026-08-05. - **Identifier:** ISO 291:2005 _(verified: appears in the quote below)_ - **Item title:** Plastics — Standard atmospheres for conditioning and testing _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 291:2008 - **Withdrawn / published date:** 2005-11-17 _(verified: appears in the quote below)_ ## What the source says > 38242,IS,,ISO 291:2005,Plastics — Standard atmospheres for conditioning and testing,Plastiques — Atmosphères normales de conditionnement et d'essai,2005-11-17,3,['83.080.01'],ISO/TC 61/SC 6,9599,"[25543,30108]",[50572],"['en','fr']",8,
ISO 291:2005 sets out specifications relating to the conditioning and testing of all plastics and all types of test specimen at constant atmospheric conditions.
Special atmospheres applicable to a particular test or material or simulating a particular climatic environment are not included.
## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).