# ISO 11723:2016 — Withdrawn and superseded ISO standards For ISO 11723:2016, item title is Solid mineral fuels — Determination of arsenic and selenium — Eschka's mixture and hydride generation method; status code is 9599; successor is ISO 11723:2025; withdrawn / published date is 2016-11-18, recorded from its source on 2026-08-05. - **Identifier:** ISO 11723:2016 _(verified: appears in the quote below)_ - **Item title:** Solid mineral fuels — Determination of arsenic and selenium — Eschka's mixture and hydride generation method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 11723:2025 - **Withdrawn / published date:** 2016-11-18 _(verified: appears in the quote below)_ ## What the source says > 70209,IS,,ISO 11723:2016,Solid mineral fuels — Determination of arsenic and selenium — Eschka's mixture and hydride generation method,Combustibles minéraux solides — Dosage de l'arsenic et du sélénium — Mélange d'Eschka et méthode par production d'hydrure,2016-11-18,2,['73.040'],ISO/TC 27/SC 5,9599,[40597],[86991],['en'],6,"

ISO 11723:2016 specifies a method using Eschka's mixture during ashing, extraction of the ash residue with acid, and hydride generation atomic absorption spectrometry or hydride generation atomic fluorescence spectrometry, for the determination of arsenic and selenium in solid mineral fuels.

" ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).