ISO/TS 20498-3:2020

Traditional Chinese medicine — Computerized tongue image analysis system — Part 3: Colour chart

This document specifies the colour character and appearance of the colour chart used in a computerized tongue image analysis system (CTIS). This document excludes diagnostic or clinical comparison to the colour chart.

Médecine traditionnelle chinoise — Système d’analyse d’images numérisées de la langue — Partie 3: Nuancier

General Information

• Status: Published
• Publication Date: 16-Apr-2020
• ICS: 11.040.99 - Other medical equipment
• Technical Committee: ISO/TC 249 - Traditional Chinese medicine
• Drafting Committee: ISO/TC 249/WG 4 - Quality and safety of medical devices other than acupuncture needles
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 30-Jan-2024

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 20498-3
First edition
2020-04
Traditional Chinese medicine —
Computerized tongue image analysis
system —
Part 3:
Colour chart
Médecine traditionnelle chinoise — Système d’analyse d’images
numérisées de la langue —
Partie 3: Nuancier
Reference number
ISO/TS 20498-3:2020(E)
©
ISO 2020

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ISO/TS 20498-3:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2020 – All rights reserved

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ISO/TS 20498-3:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification . 2
4.1 Colour chart without registration mark . 2
4.2 Colour chart with registration mark . 2
5 Technical requirements . 3
5.1 Accuracy of L*a*b* value . 3
5.2 Colour patch size and margin . 4
5.3 Optical transparency . 5
5.4 Usage of colour chart . 5
5.5 Printing condition . 5
Annex A (informative) Characteristics of each colour patch and the usage of the colour chart .6
Annex B (informative) sRGB values of colour chart . 7
Annex C (informative) Printing condition of each colour patch. 8
Bibliography . 9
© ISO 2020 – All rights reserved iii

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ISO/TS 20498-3:2020(E)

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
...