# ISO 6768:1985 — Withdrawn and superseded ISO standards

For ISO 6768:1985, item title is Ambient air — Determination of the mass concentration of nitrogen dioxide — Modified Griess-Saltzman method; status code is 9599; successor is ISO 6768:1998; withdrawn / published date is 1985-06-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO 6768:1985 _(verified: appears in the quote below)_
- **Item title:** Ambient air — Determination of the mass concentration of nitrogen dioxide — Modified Griess-Saltzman method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 6768:1998
- **Withdrawn / published date:** 1985-06-20 _(verified: appears in the quote below)_

## What the source says

> 13261,IS,,ISO 6768:1985,Ambient air — Determination of the mass concentration of nitrogen dioxide — Modified Griess-Saltzman method,Air ambiant — Détermination de la concentration en masse du dioxyde d'azote — Méthode de Griess-Saltzman modifiée,1985-06-20,1,['13.040.20'],ISO/TC 146/SC 3,9599,,[13262],"['en','fr']",12,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).