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ASTM E811 PDF
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Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions
| Published by | Publication Date | Number of Pages |
| ASTM | 06/15/2020 | 8 |
ASTM E811 – Standard Practice for Measuring Colorimetric Characteristics of Retroreflectors Under Nighttime Conditions
1.1 This practice describes the instrumental determination of retroreflected chromaticity coordinates of retroreflectors. It includes the techniques used in a photometric range to measure retroreflected (nighttime) chromaticity with either a telecolorimeter or telespectroradiometer.
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