• AASHTO T 257-96 (2018)

AASHTO T 257-96 (2018)

  • Standard Method of Test for Instrumental Photometric Measurements of Retroreflective Materials and Retroreflective Devices
  • standard by American Association of State and Highway Transporta
  • Category: AASHTO

$97.00 $49.00

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.
PDF

All of our standards document are available in PDF (Portable Document Format), an electronic, downloadable format.You will be able to download the file in your account downloads.

Multi-User Access

After purchasing, you have the ability to assign each license to a specific user.

Printable

At any time, you are permitted to make printed copies for your and your members' reference use.

AASHTO T 107M/T 107-18

AASHTO T 107M/T 107-18

Standard Method of Test for Autoclave Expansion of Portland Cement [ASTM Designation: C151/C151M-16]..

$27.00 $54.00

AASHTO T 119M/T 119-18

AASHTO T 119M/T 119-18

Standard Method of Test for Slump of Hydraulic Cement Concrete (ASTM Designation: C143/C143M-15a)..

$27.00 $54.00

AASHTO T 154-18

AASHTO T 154-18

Standard Method of Test for Time of Setting of Hydraulic Cement Paste by Gillmore Needles (ASTM Desi..

$27.00 $54.00

AASHTO T 242-18

AASHTO T 242-18

Standard Method of Test for Frictional Properties of Paved Surfaces Using a Full-Scale Tire (ASTM De..

$31.00 $61.00