ISO 20498-2:2017
(Main)Traditional Chinese medicine — Computerized tongue image analysis system — Part 2: Light environment
Traditional Chinese medicine — Computerized tongue image analysis system — Part 2: Light environment
ISO 20498-2:2017 specifies the light environment necessary for the functioning of a computerized tongue image analysis system (CTIS). ISO 20498-2:2017 does not include the electrical safety and biocompatibility of the lighting component.
Médecine traditionnelle chinoise — Système d’analyse d’images numérisées de la langue — Partie 2: Environnement lumineux
General Information
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 20498-2
First edition
2017-05
Traditional Chinese medicine —
Computerized tongue image analysis
system —
Part 2:
Light environment
Médecine traditionnelle chinoise — Système d’analyse d’images
numérisées de la langue —
Partie 2: Environnement lumineux
Reference number
ISO 20498-2:2017(E)
©
ISO 2017
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ISO 20498-2:2017(E)
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© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved
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ISO 20498-2:2017(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Technical requirements . 1
4.1 Illuminance. 1
4.2 Colour temperature . 2
4.3 Colour rendering index . 2
4.4 Illumination distribution. 2
4.5 Irradiance . 2
4.6 Ultraviolet irradiance . 2
5 Test methods . 2
5.1 Measuring points on effective surface area . 2
5.2 Illuminance. 3
5.3 Colour temperature . 3
5.4 Colour rendering index . 3
5.5 Illumination distribution. 3
5.6 Irradiance . 3
5.7 Ultraviolet irradiance . 4
Annex A (informative) Spectral weighting function for assessing ultraviolet hazards .5
Bibliography . 6
© ISO 2017 – All rights reserved iii
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ISO 20498-2:2017(E)
Foreword
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