ISO 21316:2019

INTERNATIONAL ISO
STANDARD 21316
First edition
2019-02
Traditional Chinese medicine — Isatis
indigotica root
Médecine traditionnelle chinoise — Racine d’Isatis indigotica
Reference number
ISO 21316:2019(E)
©
ISO 2019

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ISO 21316:2019(E)

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Published in Switzerland
ii © ISO 2019 – All rights reserved

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ISO 21316:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Descriptions . 2
5 Requirements . 3
5.1 Morphological features . 3
5.1.1 Appearance . 3
5.1.2 Colour . 3
5.1.3 Dimension . 4
5.1.4 Stem residue . 4
5.1.5 Texture . 4
5.1.6 Fracture . 4
5.1.7 Odour . 4
5.2 Moisture . 4
5.3 Total ash . 4
5.4 Acid-insoluble ash . 4
5.5 Ethanol-soluble extractives .
...