# ISO 7357:1985 — Withdrawn and superseded ISO standards For ISO 7357:1985, item title is Oil of calamus — Determination of cis-beta-asarone content — Gas chromatographic method on packed columns; status code is 9599; successor is ISO/NP 7357; withdrawn / published date is 1985-12-19, recorded from its source on 2026-08-05. - **Identifier:** ISO 7357:1985 _(verified: appears in the quote below)_ - **Item title:** Oil of calamus — Determination of cis-beta-asarone content — Gas chromatographic method on packed columns _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/NP 7357 - **Withdrawn / published date:** 1985-12-19 _(verified: appears in the quote below)_ ## What the source says > 14045,IS,,ISO 7357:1985,Oil of calamus — Determination of cis-beta-asarone content — Gas chromatographic method on packed columns,Huile essentielle de calamus — Détermination de la teneur en cis-beta asarone — Méthode par chromatographie en phase gazeuse sur colonne remplie,1985-12-19,1,['71.100.60'],ISO/TC 54,9599,,[14046],"['en','fr']",3,
A small quantity of the oil is analyzed under specified conditions. The cis-beta-asarone contents is determined by using the internal standard or addition method. As stationary phase polyethylene glycol 20000 is used. Operating temperatures: Oven: isotherm about 190 °C. Injection system and detector: about 170 °C.
## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).