BS IS0 23920:2020 BSl Standards Publication Cigarettes Determination of ammonia in cigarette mainstream smoke with an intense smoking regime using ion chromatography bsi. BSISO23920:2020 BRITISH STANDARD Nationalforeword This British Standard is the UK implementation of IS023920:2020. The UK participation in its preparation was entrusted to Technical Committee AW/40, Tobacco and tobacco products. A list of organizations represented on this committee can be obtained on requesttoits committeemanager. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. TheBritishStandards Institution2020 Published byBSI Standards Limited 2020 ISBN9780539041996 ICS65.160 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigendaissuedsincepublication Date Textaffected BS ISO 23920:2020 ISO INTERNATIONAL STANDARD 23920 First edition 2020-06 Cigarettes - Determination of ammonia in cigarette mainstream smoke with an intense smoking regime using ion chromatography Cigarettes-Dosage de I'ammoniac dans le courant principal de la fumee de cigarette avec un regime de fumage intense par chromatographieparéchanged'ions Referencenumber IS023920:2020(E) ISO @IS02020