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AASHTO T 257:1996 (R2013)

AASHTO T 257:1996 (R2013) Method Of Test For Instrumental Photometric Measurements Of Retroreflective Materials And Retroreflective Devices Includes procedures for instrumental determinations of photometric characteristics of retroreflective materials and retroreflective devices.

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Table of Contents

1.SCOPE
2.REFERENCEDDOCUMENTS
3.SIGNIFICANCEANDUSE
4.TERMINOLOGY
5.QUANTITIESANDUNITSFORRETROREFLECTIVEPHOTOMETRIC
MEASUREMENTS
6.REQUIREMENTSTOBESTATEDINSPECIFICATIONS
7.APPARATUS
8.TESTSPECIMENS
9.CALIBRATION
10.TESTPROCEDURES
11.REPORT
12.PRECISIONANDACCURACY
13.REFERENCES
APPENDIX(NonmandatoryInformation)
X1-DETERMININGCORRELATEDCOLORTEMPERATURE
X2-DETERMININGPHOTORECEPTORLINEARITY
X3-VERIFYINGPHOTOPICRESPONSIVITY

Abstract

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

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