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Standard
ISO 2469
Sixth edition
Paper, board and pulps —
2024-03
Measurement of diffuse radiance
factor (diffuse reflectance factor)
Papier, carton et pâtes — Mesurage du facteur de luminance
énergétique diffuse (facteur de réflectance diffuse)
Reference number
ISO 2469:2024(en) © ISO 2024
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ISO 2469:2024(en)
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© ISO 2024
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Published in Switzerland
© ISO 2024 – All rights reserved
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ISO 2469:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
5 Apparatus . 3
5.1 Reflectometer .3
5.2 Reference standards .4
5.3 Working standards .4
5.4 Black cavity . .4
6 Calibration of the instrument and its working standards . 4
6.1 General .4
6.2 Photometric calibration of the instrument and UV setting .4
6.2.1 Step 1 .4
6.2.2 Step 2 .5
6.2.3 Step 3 .5
6.2.4 Step 4 .
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