# ISO 14644-9:2012 — Withdrawn and superseded ISO standards For ISO 14644-9:2012, item title is Cleanrooms and associated controlled environments — Part 9: Classification of surface cleanliness by particle concentration; status code is 9599; successor is ISO 14644-9:2022; withdrawn / published date is 2012-08-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 14644-9:2012 _(verified: appears in the quote below)_ - **Item title:** Cleanrooms and associated controlled environments — Part 9: Classification of surface cleanliness by particle concentration _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 14644-9:2022 - **Withdrawn / published date:** 2012-08-08 _(verified: appears in the quote below)_ ## What the source says > 45826,IS,,ISO 14644-9:2012,Cleanrooms and associated controlled environments — Part 9: Classification of surface cleanliness by particle concentration,Salles propres et environnements maîtrisés apparentés — Partie 9: Classification de la propreté des surfaces par la concentration de particules,2012-08-08,1,['13.040.35'],ISO/TC 209,9599,,[76889],"['en','fr']",26,"

ISO 14644-9:2012 establishes the classification of cleanliness levels on solid surfaces by particle concentration in cleanrooms and associated controlled environment applications. Recommendations on testing and measuring methods, as well as information about surface characteristics are also given

ISO 14644-9:2012 applies to ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).