This standard provides a standard procedure for the determination of Color of thermal plasticity pavement marking materials. By using the CIE Y, x, y Color measurement system, the test can evaluate whether the Color of thermal plasticity pavement marking materials conforms to relevant specifications and detect color differences between different batches of materials. This method is suitable for various thermal plasticity pavement marking specifications to ensure Color conformity and conformity of materials. Color standards and colorimeters are slightly different. The test results need to be reported to the instrument model and calibrate standards to ensure the accuracy and conformity of the test.