# ISO/R 644:1967 — Withdrawn and superseded ISO standards For ISO/R 644:1967, item title is Conventional signs to be used in schemes for the installations of ventilation systems in ships; status code is 9599; successor is ISO/DIS 19834; withdrawn / published date is 1967-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO/R 644:1967 _(verified: appears in the quote below)_ - **Item title:** Conventional signs to be used in schemes for the installations of ventilation systems in ships _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/DIS 19834 - **Withdrawn / published date:** 1967-12-01 _(verified: appears in the quote below)_ ## What the source says > 4774,R,,ISO/R 644:1967,Conventional signs to be used in schemes for the installations of ventilation systems in ships,Signes conventionnels à utiliser dans les schémas des installations de ventilation des navires,1967-12-01,1,"['01.080.30','47.020.90']",ISO/TC 8/SC 3,9599,,[66328],"['en','fr']",13,"

The symbols given in tables have been classified in the following manner: - General conventional signs, - Ducts and duct joints, - Appliances and fittings, - Ventilators, - Various conventional signs. The general conventional signs concern symbols representing principal parts and appliances.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).