# ISO 18412:2005 — Withdrawn and superseded ISO standards For ISO 18412:2005, item title is Water quality — Determination of chromium(VI) — Photometric method for weakly contaminated water; status code is 9599; successor is ISO 18724:2025; withdrawn / published date is 2005-06-15, recorded from its source on 2026-08-05. - **Identifier:** ISO 18412:2005 _(verified: appears in the quote below)_ - **Item title:** Water quality — Determination of chromium(VI) — Photometric method for weakly contaminated water _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 18724:2025 - **Withdrawn / published date:** 2005-06-15 _(verified: appears in the quote below)_ ## What the source says > 36916,IS,,ISO 18412:2005,Water quality — Determination of chromium(VI) — Photometric method for weakly contaminated water,Qualité de l'eau — Dosage du chrome(VI) — Méthode photométrique pour des eaux faiblement contaminées,2005-06-15,1,['13.060.50'],ISO/TC 147/SC 2,9599,,[85399],"['en','fr']",6,"

ISO 18412:2005 specifies a method for the determination of chromium(VI) in drinking water in mass concentrations between 2 micrograms per litre and 50 micrograms per litre. For the determination of higher concentrations, the sample is diluted prior to analysis. The method may also be applied to weakly polluted ground and surface water, provided the matrix does not contain interfering reducing agen ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).