Cart 0 Product Products (empty)
No products
To be determined Shipping
$0.00 Total
Product successfully added to your shopping cart
Quantity
Total
There are 0 items in your cart. There is 1 item in your cart.
Total products
Total shipping To be determined
Total
New Sale! 
View larger
View larger AASHTO T 257-96 (2013)
New product
AASHTO T 257-96 (2013) Standard Method of Test for Instrumental Photometric Measurements of Retroreflective Materials and Retroreflective Devices
standard by American Association of State and Highway Transportation Officials, 1996
More info
Full Description
This standard covers procedures for instrumental determinations of photometric characteristics of retroreflective materials and retroreflective devices.This method describes procedures used to measure photometric quantities that relate to the visual perception of retroreflected light. The most significant usage is in the relation of the nighttime vehicle headlamps, retroreflector, and driver's eye geometry.