# ISO 6627:2011 — Withdrawn and superseded ISO standards For ISO 6627:2011, item title is Internal combustion engines — Piston rings — Expander/segment oil-control rings; status code is 9599; successor is ISO 6627:2022; withdrawn / published date is 2011-07-21, recorded from its source on 2026-08-05. - **Identifier:** ISO 6627:2011 _(verified: appears in the quote below)_ - **Item title:** Internal combustion engines — Piston rings — Expander/segment oil-control rings _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6627:2022 - **Withdrawn / published date:** 2011-07-21 _(verified: appears in the quote below)_ ## What the source says > 51311,IS,,ISO 6627:2011,Internal combustion engines — Piston rings — Expander/segment oil-control rings,Moteurs à combustion interne — Segments de piston — Segments racleurs régulateurs d'huile/Ressorts d'expansion,2011-07-21,2,['43.060.10'],ISO/TC 22/SC 34,9599,[26902],[77324],['en'],15,"
ISO 6627:2011 specifies the essential dimensional features of expander/segment oil-control rings, without providing a complete product description (because expander‑spacer design varies from piston-ring manufacturer to piston-ring manufacturer, the interaction between the manufacturer and the client will determine specific design details).
It applies to expander/segment oil-control rings of nominal ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).