# ISO 9972:1996 — Withdrawn and superseded ISO standards For ISO 9972:1996, item title is Thermal insulation — Determination of building airtightness — Fan pressurization method; status code is 9599; successor is ISO 9972:2006; withdrawn / published date is 1996-07-18, recorded from its source on 2026-08-05. - **Identifier:** ISO 9972:1996 _(verified: appears in the quote below)_ - **Item title:** Thermal insulation — Determination of building airtightness — Fan pressurization method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 9972:2006 - **Withdrawn / published date:** 1996-07-18 _(verified: appears in the quote below)_ ## What the source says > 17879,IS,,ISO 9972:1996,Thermal insulation — Determination of building airtightness — Fan pressurization method,Isolation thermique — Détermination de l'étanchéité à l'air des bâtiments — Méthode de pressurisation par ventilateur,1996-07-18,1,['91.120.10'],ISO/TC 163/SC 1,9599,,[36415],"['en','fr']",10, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).