National foreword

This British Standard is the UK implementation of ISO 18722‑2:2026.

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 request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2026.

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

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 documents 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).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a) patent(s) which may be required to implement this document. However, implementers are cautioned that this may not represent the latest information, which may be obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see 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 18722 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

Introduction

A tobacco heating system (THS) is a specific combination of a tobacco heating device (THD) and a heated tobacco product (HTP) used together and designed to produce a nicotine-containing aerosol without combustion of the tobacco substrate. An HTP is a product containing a tobacco substrate that is designed to be heated and not combusted by a separate source to produce a nicotine-containing aerosol.

With the emerging development and commercialization of HTPs, there are a number of different approaches to heating the HTP, categorized as electrically, aerosol and carbon HTPs (eHTP, aHTP and cHTP respectively), as described in ISO 6080 [1]. Carbon heated tobacco products (cHTPs) have not been commercially available as of 2022.

In some countries, the regulation of HTPs requires nicotine yields in aerosol. Therefore, there is a necessity to have an international standard in place to get reliable/comparable data on nicotine in the aerosol from THSs, with a specific HTP. Technical investigation of HTPs requires determining aerosol collected mass (ACM) in combination with a specific THD.

This document was developed for the determination of ACM with a gravimetric method, and nicotine yields in trapped aHTP aerosol utilizing gas chromatography coupled with a flame ionization detector. This document is based on the CORESTA recommended method (CRM) 107^[2], which was written on the basis of the results obtained in an interlaboratory study conducted in 2021 involving 17 laboratories[3].

No machine puffing regime can represent all human puffing behaviour.

It is recommended that aHTP also be tested under conditions of a different intensity of machine puffing than those specified in this document.

Machine puffing testing is useful to characterize aHTP emissions for design and regulatory purposes, but communication of machine measurements to users can result in misunderstandings about differences in exposure and risk across brands.

Aerosol 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.

WARNING — Regulation and standardization are independent from each other, and standardization does not pre-empt regulation.

1 Scope

This document specifies an analytical method with a puffing regime according to ISO 5501-2 [4] to determine aerosol collected mass (ACM) and nicotine in the aerosol from aerosol heated tobacco products, in combination with a specific tobacco heating device (THD).

2 Normative references

3 Terms and definitions

4 Principle

5 Reagents

5.1

5.2

5.3

5.4

5.5

6 Apparatus

6.1

6.2

6.3

6.4

6.5

6.6

6.7

7 Preparation

7.1 Preparation of glassware

7.2 Preparation of extraction solution

7.3 Preparation of calibration solutions

8 Procedure

8.1 Preparation of test samples

8.2 Glass fibre filter pads handling

8.3 Aerosol collection and sample preparation

8.4 Test portion

8.5 Setting up the apparatus

8.6 Calibration of the gas chromatograph

8.7 Determination

9 Expression of results

10 Repeatability and reproducibility

11 Test report

Bibliography