ISO INTERNATIONAL STANDARD 20408 First edition 2017-01 Traditional Chinese medicine Panax notoginseng seeds and seedlings Médecine traditionnelle chinoise - Graines et plants de Panax notoginseng Reference number IS0 20408:2017(E) International Organization for Standardization @ IS0 2017 =ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS underI Not for Resale, 2017/3/28 02:52:56 ted without license from IHS IS0 20408:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Intenationaibr PrganizationforStandardization ensee-ZHEJIANG INST OF STANDARDIZRoISQ $17 - All rights reserved etworking permitted without license from IHS IS0 20408:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Descriptions 4.1 Panax notoginseng seed .3 4.2 Panax notoginseng seedling ..4 5 Requirements .5 5.1 General characteristics ..5 5.2 Panax notoginseng seed .5 5.2.1 Morphological features of seed 5 5.2.2 Moisture ..5 5.2.3 Purity .6 5.2.4 Viability .6 5.2.5 Maturity. 6 5.2.6 Fungi. .6 5.2.7 1 000-seed weight, seed width, seed thickness and seed length .. 6 5.3 Panax notoginseng seedling .6 5.3.1 Morphological features of seedling 5.3.2 Fungi. .6 5.3.3 Nematode. 5.3.4 Seedling weight .7 Sampling 1 6 6.1 Seed sampling 6.2 Seedling sampling .7 7 Test methods. 1 7.1 Moisture content .7 7.2 Seed width .7 7.3 Seed thickness .7 7.4 Seed length .8 7.5 Maturity 8 7.6 Purity .8 7.7 Seedviability .8 7.8 1 000-seed weight. 7.9 Fungi testing. .8 7.9.1 Preparation of seeds ..8 7.9.2 Preparation of seedlings .8 7.9.3 Alternaria spp. testing .9 7.9.4 Fusarium spp. testing .9 7.10 Nematode testing. .9 7.11 Seedling weight. .9 7.12 Seedling diameter. .9 7.13 Hibernaculum diameter 8 Test report 9 Packaging, storage and transportation ..10 10 Marking ..10 Bibliography .11 iii See=ZHEJIANG INSTOFSTANDARDIZATION C15956617 ed without license from IHS