ISO/TS 21758:2026

Technical
Specification
ISO/TS 21758
First edition
Traditional Chinese medicine —
2026-01
General requirements of stick-type
package for viscous extracts
Reference number
© ISO 2026
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ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
4.1 External appearance .2
4.2 Heavy metals in combustion test .2
4.3 Extractable substances test .2
4.3.1 Foaming test .2
4.3.2 pH .2
4.3.3 Potassium permanganate reducing substances.2
4.3.4 Residue on evaporation .2
5 Test methods . 2
5.1 External appearance .2
[2][3]
5.2 Combustion test .2
[2][3]
5.3 Extractable substances test .3
5.3.1 Test solution and blank solution Preparation .3
5.3.2 Foaming test .4
5.3.3 pH test .4
5.3.4 Potassium permanganate reducing substances test .4
5.3.5 Test for residue on evaporation .5
Bibliography . 6

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 249, Traditional medicine, Subcommittee SC 1,
Traditional Chinese medicine.
A list of all parts in the ISO TS 21758 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.

iv
Technical Specification ISO/TS 21758:2026(en)
Traditional Chinese medicine — General requirements of
stick-type package for viscous extracts
1 Scope
This document specifies the general requirements for the safety and quality of stick-type single-dose
package for viscous extracts. This document does not apply to solid dosage forms.
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 21371, Traditional Chinese medicine — Labelling requirements of products intended for oral or topi
...