# ISO 6621-2:2003 — Withdrawn and superseded ISO standards

For ISO 6621-2:2003, item title is Internal combustion engines — Piston rings — Part 2: Inspection measuring principles; status code is 9599; successor is ISO 6621-2:2020; withdrawn / published date is 2003-11-10, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6621-2:2003 _(verified: appears in the quote below)_
- **Item title:** Internal combustion engines — Piston rings — Part 2: Inspection measuring principles _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6621-2:2020
- **Withdrawn / published date:** 2003-11-10 _(verified: appears in the quote below)_

## What the source says

> 38437,IS,,ISO 6621-2:2003,Internal combustion engines — Piston rings — Part 2: Inspection measuring principles,Moteurs à combustion interne — Segments de piston — Partie 2: Principes de mesure pour inspection,2003-11-10,2,['43.060.10'],ISO/TC 22/SC 34,9599,[13034],[70227],['en'],29,<p>ISO 6621-2:2003 specifies the principles to be used in the measuring for inspection purposes of piston rings for both reciprocating internal combustion engines and compressors working under analogous conditions. It is applicable to all such rings of a diameter greater than or equal to 200 mm.</p>

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).