AASHTO PP 74-2019 Standard Practice for Determination of Size and Shape of Glass Beads Used in Traffic Markings by Means of Computerized Optical Method
The American Road & Transportation Builders Association
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AASHTO PP 74-2019
AASHTO PP 74-2019 history
1970AASHTO PP 74-2019 Standard Practice for Determination of Size and Shape of Glass Beads Used in Traffic Markings by Means of Computerized Optical Method
2013AASHTO PP 74-2013 Standard Practice for Determination of Size and Roundness of Glass Beads Used in Traffic Markings by Means of Computerized Optical Method
2006LST EN 14872-2006 Bicycles - Accessories for bicycles - Luggage carriers