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AASHTO PP 74-19
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AASHTO PP 74-19 Standard Practice for Determination of Size and Shape of Glass Beads Used in Traffic Markings by Means of Computerized Optical Method
standard by American Association of State and Highway Transportation Officials, 2019
Full Description
AASHTO PP 74-19 describes measuring size and roundness of translucent glass beads used in traffic markings with computerized optical equipment. This practice is intended for glass beads from 0.15 mm to 2.35 mm in diameter.
M00001087
2021-03-02
New product
AASHTO PP 74-19 Standard Practice for Determination of Size and Shape of Glass Beads Used in Traffic Markings by Means of Computerized Optical Method
standard by American Association of State and Highway Transportation Officials, 2019