# ISO 19634:2017 — Withdrawn and superseded ISO standards For ISO 19634:2017, item title is Fine ceramics (advanced ceramics, advanced technical ceramics) — Ceramic composites — Notations and symbols; status code is 9599; successor is ISO 19634:2026 | ISO/PWI 19634; withdrawn / published date is 2017-10-20, recorded from its source on 2026-08-05. - **Identifier:** ISO 19634:2017 _(verified: appears in the quote below)_ - **Item title:** Fine ceramics (advanced ceramics, advanced technical ceramics) — Ceramic composites — Notations and symbols _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 19634:2026 | ISO/PWI 19634 - **Withdrawn / published date:** 2017-10-20 _(verified: appears in the quote below)_ ## What the source says > 65572,IS,,ISO 19634:2017,"Fine ceramics (advanced ceramics, advanced technical ceramics) — Ceramic composites — Notations and symbols",Céramiques techniques — Céramiques composites — Notations et symboles,2017-10-20,1,['81.060.30'],ISO/TC 206,9599,,"[88409,77115]","['en','fr']",13,"

ISO 19634:2017 defines the symbols to be used to represent physical, mechanical and thermal characteristics, as determined by methods described in relevant ISO publications, for ceramic matrix composites. It is aimed at avoiding confusion in reporting measurements and characteristics of products.

Where possible, the definitions are in accordance with the relevant parts of ISO 80000. In addition, the symbo ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).