# ISO/TS 23942:2020 — Withdrawn and superseded ISO standards For ISO/TS 23942:2020, item title is Determination of hydroxytyrosol and tyrosol content in extra virgin olive oils — Reverse phase high performance liquid chromatography (RP-HPLC); status code is 9599; successor is ISO 23942:2022; withdrawn / published date is 2020-07-22, recorded from its source on 2026-08-05. - **Identifier:** ISO/TS 23942:2020 _(verified: appears in the quote below)_ - **Item title:** Determination of hydroxytyrosol and tyrosol content in extra virgin olive oils — Reverse phase high performance liquid chromatography (RP-HPLC) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 23942:2022 - **Withdrawn / published date:** 2020-07-22 _(verified: appears in the quote below)_ ## What the source says > 77412,TS,,ISO/TS 23942:2020,Determination of hydroxytyrosol and tyrosol content in extra virgin olive oils — Reverse phase high performance liquid chromatography (RP-HPLC),Détermination de la teneur en hydroxytyrosol et tyrosol dans les huiles d'olive vierges extra — Chromatographie liquide à haute performance en phase inverse (CLHP-RP),2020-07-22,1,['67.200.10'],ISO/TC 34/SC 11,9599,,[82781],"['en','fr']",10,

This document specifies a method for the quantitative determination of hydroxytyrosol and tyrosol content in extra virgin olive oils using reverse phase high performance liquid chromatography (RP-HPLC) with spectrophotometric detection. The method is also applicable to all other oliv ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).