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AASHTO T 346-22
M00010855
New product
AASHTO T 346-22 Standard Method of Test for Glass Beads Used in Pavement Markings
standard by American Association of State and Highway Transportation Officials, 2022
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Full Description
The procedures for testing glass beads used in traffic markings are described in this method. This includes the method for obtaining a representative test sample, preparation of the test specimens, and performing the specified tests.
This test method is divided into the following parts:
Sampling Glass Beads During Production;Sampling Shipments of Glass Beads Vertically from Bulk Containers;Gradation;Roundness;Refractive Index;Flow Characteristics Test—Referee Method;Moisture Resistant Coating Test—Referee Method;Flotation Test—Referee Method;Adherence Coating Oven Test—Referee Method;Alternative Flotation Test—As Permitted by Purchasing Agency;Alternative Moisture Resistant Coating Test—As Permitted by Purchasing Agency; andAlternative Adherence Test—As Permitted by Purchasing Agency.This standard was formerly designated as provisional standard TP 97.