90.60 Close of review Sep 3, 2025
ISO
ISO/TC 126 Tobacco and tobacco products
International Standard
65.160 Tobacco, tobacco products and related equipment
Published
This document specifies a method for the quantification of ammonia by ion chromatography in mainstream smoke using ISO 20778 smoking parameters.
This method is applicable to an ammonia yield of about 10 µg/cigarette to 40 µg/cigarette. It is not applicable for the determination of ammonia in dark-air cured cigarettes.
PUBLISHED
ISO 23920:2020
90.60
Close of review
Sep 3, 2025