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ASTM D 869-2021 Evaluation of Coating Settlement

Arti dan Tujuan 3.1 Paint may over-settle if improperly formulated or processed. Oversettled paint is difficult to reintegrate into the paint system, resulting in time delays or valuable pigment remaining in the drum. This test method attempts to assess the extent of settlement caused by the accelerated test method D1309. Itu...

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ASTM D 4960-2020 “Color Evaluation of Thermoplastic Road Sign Materials”

Arti dan Tujuan 5.1 This test method provides a standard procedure for color determination of thermoplastic pavement marking materials. The test method can be used in conjunction with various thermoplastic pavement marking specifications to determine whether the material complies with the described specifications. Manufacturers of these materials can also use this...

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ASTM D 1155-2020 “Angle of Glass Beads”

Arti dan Tujuan 4.1 The roundness of a glass sphere is a measurable aspect related to its performance as a retroreflective medium. The function of this test method is to measure the percentage of true spheres associated with compliance with the applicable specification. Catatan 1: This method has been used in other...

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ASTM D 1309-1993 Settlement of Road Sign Paint in Storage

1 Cakupan 1.1 This method involves laboratory test steps over a period of two weeks to simulate possible settlement of road sign paint in normal storage for approximately 12 months. 1.2 This standard is expressed in IN-1B units and the values given in parentheses are for reference only. 1.3 This standard is not...

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