Contents Page
4 Standard conditions
4.1 Machine pressure drop
4.2 Puff duration
4.3 Puff volume
4.4 Puff frequency
4.5 Puff profile
4.6 Puff number
5 Specification of the machine
5.1 General
5.2 Operating principle and puff profile
5.3 Reliability and compensation
5.4 THS holder
5.5 Aerosol traps
5.6 Sample conditioning and handling
5.7 Test atmosphere
5.8 THD preparation
5.9 Vent blocking
5.10 Initiation of collection
5.11 Termination of collection
5.12 Device error or malfunction
Foreword
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The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of ISO document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see
www.iso.org/directives).
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 126, Tobacco and tobacco products.
A list of all parts in the ISO 5501 series can be found on the ISO website.
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Introduction
Tobacco heating systems (THS) are designed to heat a tobacco substrate, to produce a nicotine-containing aerosol without the combustion of the tobacco substrate. A THS is a combination of a heated tobacco product (HTP) and a tobacco heating device (THD). The HTP part of the THS is a product containing a tobacco substrate that is designed to be heated and not combusted.
With the emerging development and commercialisation of HTPs, there are a number of different approaches to heating the HTP, categorised as electrically, aerosol and carbon, HTPs; eHTP, aHTP and cHTP, respectively (see ISO 6080).
This document has been developed to define and specify the requirements for an electrically heated tobacco product (eHTP) puffing regime in order to generate and collect aerosol for subsequent analytical measurement in a robust and reproducible manner.
No machine puffing regime can represent all human use behaviour, so dependent on the testing requirement it might be appropriate to test eHTPs differently according to their design, or under conditions of different intensity to reflect the range of human behaviour.
Machine testing is useful to characterize emissions for device development and regulatory purposes and may be used as inputs for product hazard assessment; however, it is not intended to be nor is it valid as a measure of human exposure or risk.
NOTE This document is a reference document for ISO standards on tobacco heating systems (e.g. ISO 5501). Regulation and standardisation are independent from each other, and standardisation does not pre-empt regulation.