The SN/T 5031-2017 standard specifies an automated tristimulus values method for color determination of petroleum products. This method evaluates the color characteristics of petroleum products by measuring their tristimulus values (the intensity of red, green and blue light) at specific wavelengths. The requirements for test equipment, operation steps, Sample Handling and result calculation are described in detail in the standard. Through automated tristimulus values measurement, the Accuracy and conformity of Color assessment can be improved, and it is suitable for Color detection of different types of petroleum products. This method is not only suitable for the petroleum industry, but also can be widely used in the quality control of Miscellaneous chemical products. The implementation of the standard helps to ensure that the color of petroleum products meets the relevant mass standards and provides a scientific basis for production and trade.