# ISO 21766:2018 — Withdrawn and superseded ISO standards

For ISO 21766:2018, item title is Tobacco and tobacco products — Determination of tobacco-specific nitrosamines in tobacco products — Method using LC-MS/MS; status code is 9599; successor is ISO 21766:2021; withdrawn / published date is 2018-09-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 21766:2018 _(verified: appears in the quote below)_
- **Item title:** Tobacco and tobacco products — Determination of tobacco-specific nitrosamines in tobacco products — Method using LC-MS/MS _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21766:2021
- **Withdrawn / published date:** 2018-09-21 _(verified: appears in the quote below)_

## What the source says

> 71601,IS,,ISO 21766:2018,Tobacco and tobacco products — Determination of tobacco-specific nitrosamines in tobacco products — Method using LC-MS/MS,Tabac et produits du tabac — Dosage des nitrosamines spécifiques du tabac dans les produits du tabac — Méthode par CL-SM/SM,2018-09-21,1,['65.160'],ISO/TC 126,9599,,[81666],"['en','fr']",16,"<p>This document specifies a method for the quantification of four tobacco specific nitrosamines (TSNAs) in tobacco and the following tobacco products: cigarettes, cigars and smokeless tobacco products using reversed phase high performance liquid chromatography with tandem mass spectrometry (LC-MS/MS). The TSNAs determined with this method are: N-nitrosonornic

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).