# ISO 4687:1984 — Withdrawn and superseded ISO standards For ISO 4687:1984, item title is Iron ores — Determination of phosphorus content — Molybdenum blue spectrophotometric method; status code is 9599; successor is ISO 4687-1:1992; withdrawn / published date is 1984-05-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 4687:1984 _(verified: appears in the quote below)_ - **Item title:** Iron ores — Determination of phosphorus content — Molybdenum blue spectrophotometric method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4687-1:1992 - **Withdrawn / published date:** 1984-05-01 _(verified: appears in the quote below)_ ## What the source says > 10667,IS,,ISO 4687:1984,Iron ores — Determination of phosphorus content — Molybdenum blue spectrophotometric method,Minerais de fer — Dosage du phosphore — Méthode spectrophotométrique au bleu de molybdène,1984-05-01,1,['73.060.10'],ISO/TC 102/SC 2,9599,,[10668],"['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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).