# ISO 6326-3:1989 — Withdrawn and superseded ISO standards For ISO 6326-3:1989, item title is Natural gas — Determination of sulfur compounds — Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry; status code is 9599; successor is ISO/WD 6326-3; withdrawn / published date is 1989-06-22, recorded from its source on 2026-08-05. - **Identifier:** ISO 6326-3:1989 _(verified: appears in the quote below)_ - **Item title:** Natural gas — Determination of sulfur compounds — Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/WD 6326-3 - **Withdrawn / published date:** 1989-06-22 _(verified: appears in the quote below)_ ## What the source says > 12619,IS,,ISO 6326-3:1989,"Natural gas — Determination of sulfur compounds — Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry","Gaz naturel — Détermination des composés soufrés — Partie 3: Détermination du sulfure d'hydrogène, des thiols et du sulfure de carbonyle par potentiométrie",1989-06-22,1,['75.060'],ISO/TC 193/SC 1,9599,,[25107],"['en','fr']",5,"
Specifies a potentiometric method for components in natural gas in the concentration range equal to or above 1 mg/m3. The gas must be free of dust, mist, oxygen, hydrogen cyanide and carbon disulfide. The method is not recommended for gases containing more than approximately 1,5 % (V/ ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).