ISO/TS 25198:2026

Technical
Specification
ISO/TS 25198
First edition
Traditional Chinese medicine —
2026-11
Sample preparation methods for
smoke density test of smokeless
moxibustion device
Médecine traditionnelle chinoise — Méthodes de préparation
des échantillons pour l'essai de densité de fumée du dispositif de
moxibustion sans fumée
Reference number
© ISO 2026
All rights reserved.
This ISO publication is protected by copyright and is owned by ISO and/or its licensors.
The content of this ISO publication is provided under licence, not sold. Use is subject to the applicable licence terms issued by ISO,
an ISO member body, or an authorized third-party distributor.
Except as required for implementation or expressly permitted by a separate licence, no part of this ISO publication may be
reproduced, distributed, modified, used, or made available in any form or by any means – electronic or mechanical, including
photocopying, scanning, recording, or posting on internal or external digital platforms.
Any use beyond the scope of the granted rights is prohibited and may result in legal action.
ISO copyright office
CP 401 • CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Specimen . 2
4.1 General .2
4.2 Specimen preparation .2
4.2.1 Sample selection .2
4.2.2 Specimen formation .2
4.2.3 Specimen storage .2
5 Calculation of smoke density . 2
5.1 Smoke density .2
5.2 Correction of subsidiary materials .2
Annex A (informative) Specimen formation . 4
Annex B (informative) Test results of smokeless moxibustion device specimen . 9
Bibliography .11

iii
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 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).
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 249, Traditional medicine, Subcommittee SC1,
Traditional Chinese medicine.
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.

iv
Introduction
Moxibustion is one of the major traditional medical therapies which is used worldwide despite the limitations
of smoke. Smokeless moxibustion is an emerging form of moxibustion therapy. However, smokeless
moxibustion devices have different forms or additional components and thus require guidelines for testing.
ISO 21366 has been developed to improve the quality and safety of moxibustion treatments using smokeless
moxibustion devices, especially in regard to the biocompatibility with the human body and indoor air
quality. ISO 25198 defines detailed test methods and sample preparation methods for the various forms of
moxibustion devices.
v
Technical Specification ISO/TS 25198:2026(en)
Traditional Chinese medicine — Sample preparation methods
for smoke density test of smokeless moxibustion device
1 Scope
This document provides sample preparation methods according to the shape of the smokeless moxibustion
device for the application of the smoke density test for smokeless moxibustion devices specified in
ISO 21366:2026, Annex B.
This document also provides the smoke density test results of moxa floss, carbonized moxa floss and
smokeless moxibustion device products for information, in Annex B.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 21366:2026, Traditional Chinese medicine — General requirements for smokeless moxibustion devices
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
moxibustion device
apparatus that uses moxa floss as the main combustion material and intended for single or repeated usage
EXAMPLE Moxibustion with tube is a type of moxibustion device, such as a short moxa roll with a cardboard base
and a moxa tube (made of cardboard) that is single-use and developed as an alternative to direct moxibustion.
Note 1 to entry: Moxibustion devices include those accessories as defined by the manufacturers that are necessary to
enable the normal use of the moxibustion device.
[SOURCE: ISO 18666:2021, 3.1]
3.2
smokeless moxibustion device
variant of the moxibustion device (3.1) aiming to reduce the smoke and bad odour caused by combustion by
process of changing main combustion material
Note 1 to entry: Carbonized moxa floss, carbonized mugwort leaves or other carbonized materials can be used as the
main combustion material.
Note 2 to entry: Not all moxibustion devices use moxa floss and the intended use is not definitional.
3.3
smoke density
number of particulates per volume as described operationally by one of two parameters:

— m, an absorbance index, used in the testing of smoke detectors using scattered or transmitted light;
...