Meaning and Purpose
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 method to determine the uniformity of thermoplastic pavement marking materials between batches.

5.2 Color standards and colorimeters are slightly different. This test method is only applicable if the results are reported and information on the instrument model name and calibration standard is listed.

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

Scope of
1.1 This test method describes the instrumental determination of the color of thermoplastic pavement marking materials using the CIEY, x, y color measurement system.

1.2 Values expressed in SI units shall be regarded as standards. The values given in parentheses are for reference only.

1.3 This standard is not intended to address all safety issues, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health and environmental practices and to determine the applicability of regulatory restrictions prior to use.

1.4 This international Standard has been developed in accordance with the internationally recognized standardization principles established in the Decision on Principles for the Development of International Standards, Guidelines and Recommendations issued by the Committee on Technical Barriers to Trade of the World Trade Organization.