# ISO 21187:2004 — Withdrawn and superseded ISO standards For ISO 21187:2004, item title is Milk — Quantitative determination of bacteriological quality — Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results; status code is 9599; successor is ISO 21187:2021; withdrawn / published date is 2004-11-25, recorded from its source on 2026-08-05. - **Identifier:** ISO 21187:2004 _(verified: appears in the quote below)_ - **Item title:** Milk — Quantitative determination of bacteriological quality — Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 21187:2021 - **Withdrawn / published date:** 2004-11-25 _(verified: appears in the quote below)_ ## What the source says > 34434,IS,,ISO 21187:2004,Milk — Quantitative determination of bacteriological quality — Guidance for establishing and verifying a conversion relationship between routine method results and anchor method results,Lait — Mesure quantitative de la qualité bactériologique — Lignes directrices pour établir et vérifier une relation de conversion entre les résultats de la méthode de routine et les résultats de la méthode d'ancrage,2004-11-25,1,"['67.100.01','07.100.30']",ISO/TC 34/SC 5,9599,,[72825],"['en','fr']",13,"
ISO 21187|IDF 196:2004 gives guidelines for the establishment of a conversion relationship between the results of a routine method and an anchor method, and its verification for the ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).