# ISO 924:1975 — Withdrawn and superseded ISO standards For ISO 924:1975, item title is Coal preparation plant — Principles and conventions for flowsheets; status code is 9599; successor is ISO 924:1989; withdrawn / published date is 1975-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 924:1975 _(verified: appears in the quote below)_ - **Item title:** Coal preparation plant — Principles and conventions for flowsheets _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 924:1989 - **Withdrawn / published date:** 1975-12-01 _(verified: appears in the quote below)_ ## What the source says > 5339,IS,,ISO 924:1975,Coal preparation plant — Principles and conventions for flowsheets,Ateliers de préparation du charbon — Principes et conventions concernant les schémas de traitement,1975-12-01,1,['73.120'],ISO/TC 27/SC 1,9599,,[5340],"['en','fr']",8, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).