# ISO 23913:2006 — Withdrawn and superseded ISO standards For ISO 23913:2006, item title is Water quality — Determination of chromium(VI) — Method using flow analysis (FIA and CFA) and spectrometric detection; status code is 9599; successor is ISO 18724:2025; withdrawn / published date is 2006-05-12, recorded from its source on 2026-08-05. - **Identifier:** ISO 23913:2006 _(verified: appears in the quote below)_ - **Item title:** Water quality — Determination of chromium(VI) — Method using flow analysis (FIA and CFA) and spectrometric detection _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18724:2025 - **Withdrawn / published date:** 2006-05-12 _(verified: appears in the quote below)_ ## What the source says > 37017,IS,,ISO 23913:2006,Water quality — Determination of chromium(VI) — Method using flow analysis (FIA and CFA) and spectrometric detection,Qualité de l'eau — Dosage du chrome(VI) — Méthode par analyse en flux (FIA et CFA) et détection spectrométrique,2006-05-12,1,['13.060.50'],ISO/TC 147/SC 2,9599,,[85399],"['en','fr','ru']",14,"

ISO 23913:2006 specifies flow injection analysis (FIA) and continuous flow analysis (CFA) methods for the determination of chromium(VI) in various types of water. The method applies to the following mass concentration ranges: for FIA (20 to 200 micrograms per litre and 200 to 2 000 micrograms per litre for surface water, leachates and waste water) and for CFA ( ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).