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AASHTO T 257 : 1996

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AASHTO T 257 : 1996

METHOD OF TEST FOR INSTRUMENTAL PHOTOMETRIC MEASUREMENTS OF RETROREFLECTIVE MATERIALS AND RETROREFLECTIVE DEVICES

American Association of State Highway and Transportation Officials

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Table of Contents

1. SCOPE
2. REFERENCED DOCUMENTS
3. SIGNIFICANCE AND USE
4. TERMINOLOGY
5. QUANTITIES AND UNITS FOR RETROREFLECTIVE PHOTOMETRIC
    MEASUREMENTS
6. REQUIREMENTS TO BE STATED IN SPECIFICATIONS
7. APPARATUS
8. TEST SPECIMENS
9. CALIBRATION
10. TEST PROCEDURES
11. REPORT
12. PRECISION AND ACCURACY
13. REFERENCES
APPENDIX (Nonmandatory Information)
X1 - DETERMINING CORRELATED COLOR TEMPERATURE
X2 - DETERMINING PHOTORECEPTOR LINEARITY
X3 - VERIFYING PHOTOPIC RESPONSIVITY

Abstract

Includes procedures for instrumental determinations of photometric characteristics of retroreflective materials and retroreflective devices.

General Product Information

Document Type Standard
Status Current
Publisher American Association of State Highway and Transportation Officials