# ISO 27509:2012 — Withdrawn and superseded ISO standards

For ISO 27509:2012, item title is Petroleum and natural gas industries — Compact flanged connections with IX seal ring; status code is 9599; successor is ISO 27509:2020; withdrawn / published date is 2012-12-13, recorded from its source on 2026-08-05.

- **Identifier:** ISO 27509:2012 _(verified: appears in the quote below)_
- **Item title:** Petroleum and natural gas industries — Compact flanged connections with IX seal ring _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 27509:2020
- **Withdrawn / published date:** 2012-12-13 _(verified: appears in the quote below)_

## What the source says

> 44203,IS,,ISO 27509:2012,Petroleum and natural gas industries — Compact flanged connections with IX seal ring,Industries du pétrole et du gaz naturel — Raccordements à brides compactes avec bague d'étanchéité IX,2012-12-13,1,['23.040.60'],ISO/TC 67/SC 6,9599,,[78201],"['en','fr']",100,"<p>ISO 27509:2012 specifies detailed manufacturing requirements for circular steel and nickel alloy compact flanged connections and associated seal rings, for designated pressures and temperatures in class designations CL 150 (PN 20) to CL 1500 (PN 260) for nominal sizes from DN 15 (NPS ½) to DN 1200 (NPS 48), and for CL 2500 (PN 420) for nominal sizes from DN 15 (NPS ½) to DN 600 (NPS 24).</p><p>ISO 27509:201

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).