AASHTO T 257-96 (2018) PDF Download
Standard EN Sample
Standard Method of Test for Instrumental Photometric Measurements of Retroreflective Materials and Retroreflective Devices
Also Known As:
SKU168228343
Published by
American Association of State Highway and Transportation Officials
AASHTO
Publication Date1996
Pages CountPages23
The AASHTO T 257-96 (2018) standard provides guidelines for conducting instrumental determinations of the photometric characteristics of retroreflective materials and devices. The standard outlines procedures for measuring photometric quantities that are relevant to the visual perception of retroreflected light.
The primary application of this standard is in determining the relationship between nighttime vehicle headlamps, retroreflectors, and the geometry of the driver's eye. By measuring the photometric properties of retroreflective materials and devices, it becomes possible to assess their effectiveness in enhancing visibility and ensuring road safety during nighttime conditions.
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| Language(s) | English |
| File Size | 1.2 MB |
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