DIN ISO 10362-2:2015-12

This document contains the German translation of the International Standard ISO 10362-2:2013 which has been prepared by Technical Committee ISO/TC 126 "Tobacco and tobacco products" (secretariat: DIN, Germany). The responsible national committee is Working Committee NA 057-04-01 AA "Tabak und Tabakerzeugnisse" ("Tobacco and tobacco products") at DIN Standards Committee Food and Agricultural Products (NAL). This part of ISO 10362 specifies the use of the Karl Fischer method for the determination of water in cigarette smoke condensates. The smoking of cigarettes and collection of mainstream smoke are normally carried out in accordance with ISO 4387. However, the method is also applicable to the determination of water in smoke condensates obtained by non-standard smoking. ISO 4387 specifies the use of gas chromatography for the determination of water in smoke condensate solutions (see also ISO 10362-1). In countries not in a position to use the gas-chromatographic method, the determination of water in smoke condensate can be performed by the method described in this part of ISO 10362 and an appropriate note made in the expression of the results. No machine smoking regime can represent all human smoking behaviour: - it is recommended that cigarettes also be tested under conditions of a different intensity of machine smoking than those specified in this International Standard; - machine smoking testing is useful to characterize cigarette emissions for design and regulatory purposes, but communication of machine measurements to smokers can result in misunderstandings about differences in exposure and risk across brands; - smoke emission data from machine measurements may be used as inputs for product hazard assessment, but they are not intended to be nor are they valid as measures of human exposure or risks. Communicating differences between products in machine measurements as differences in exposure or risk is a misuse of testing using ISO standards.