# ISO 9624:1997 — Withdrawn and superseded ISO standards For ISO 9624:1997, item title is Thermoplastics pipes for fluids under pressure — Mating dimensions of flange adapters and loose backing flanges; status code is 9599; successor is ISO/NP 9624 | ISO 9624:2019; withdrawn / published date is 1997-02-13, recorded from its source on 2026-08-05. - **Identifier:** ISO 9624:1997 _(verified: appears in the quote below)_ - **Item title:** Thermoplastics pipes for fluids under pressure — Mating dimensions of flange adapters and loose backing flanges _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/NP 9624 | ISO 9624:2019 - **Withdrawn / published date:** 1997-02-13 _(verified: appears in the quote below)_ ## What the source says > 17438,IS,,ISO 9624:1997,Thermoplastics pipes for fluids under pressure — Mating dimensions of flange adapters and loose backing flanges,Tubes en matières thermoplastiques destinés à la pression — Dimensions des collets et dimensions de raccordement des brides folles plates,1997-02-13,1,['23.040.60'],ISO/TC 138/SC 2,9599,,"[54947,67984]","['en','fr']",7,
Gives the mating dimensions of flange adaptors of thermoplastic materials and the coresponding dimensions of loose backing flanges to be used for thermoplastic pipes under pressure.
## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).