# ISO 12744:2006 — Withdrawn and superseded ISO standards For ISO 12744:2006, item title is Copper, lead, zinc and nickel concentrates — Experimental methods for checking the precision of sampling; status code is 9599; successor is ISO 12744:2025; withdrawn / published date is 2006-04-19, recorded from its source on 2026-08-05. - **Identifier:** ISO 12744:2006 _(verified: appears in the quote below)_ - **Item title:** Copper, lead, zinc and nickel concentrates — Experimental methods for checking the precision of sampling _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 12744:2025 - **Withdrawn / published date:** 2006-04-19 _(verified: appears in the quote below)_ ## What the source says > 41317,IS,,ISO 12744:2006,"Copper, lead, zinc and nickel concentrates — Experimental methods for checking the precision of sampling","Concentrés de cuivre, de plomb, de zinc et de nickel — Méthodes expérimentales de contrôle de la fidélité de l'échantillonnage",2006-04-19,2,['73.060.99'],ISO/TC 183,9599,[22318],[81916],['en'],15,"
ISO 12744:2006 specifies methods for checking the precision of primary sampling, sample processing, chemical analysis, physical testing and determination of moisture content of copper, lead, zinc and nickel concentrates being carried out in accordance with the methods specified in ISO 12743, expressed in terms of standard deviations.
" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).