# ISO 18589-4:2009 — Withdrawn and superseded ISO standards For ISO 18589-4:2009, item title is Measurement of radioactivity in the environment — Soil — Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry; status code is 9599; successor is ISO 18589-4:2019; withdrawn / published date is 2009-03-02, recorded from its source on 2026-08-05. - **Identifier:** ISO 18589-4:2009 _(verified: appears in the quote below)_ - **Item title:** Measurement of radioactivity in the environment — Soil — Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18589-4:2019 - **Withdrawn / published date:** 2009-03-02 _(verified: appears in the quote below)_ ## What the source says > 40876,IS,,ISO 18589-4:2009,Measurement of radioactivity in the environment — Soil — Part 4: Measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry,Mesurage de la radioactivité dans l'environnement — Sol — Partie 4: Mesurage des isotopes du plutonium (plutonium 238 et plutonium 239 + 240) par spectrométrie alpha,2009-03-02,1,"['17.240','13.080.01']",ISO/TC 85/SC 2,9599,,[69086],"['en','fr']",22,"

ISO 18589-4:2009 describes a method for measuring plutonium 238 and 239 + 240 isotopes in soil by alpha spectrometry samples using chemical separation techniques. The method can be used for any type of environmental study or monitoring. These techniques can ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).