The principles of Paints and varnish Colorology are covered in Part 1 of the ISO 7724-1-1984 standard. The standard describes the Colorimetric terminology and basic requirements required to determine the color coordinates of coatings. Through these terminology and requirements, it is possible to accurately measure and describe the chroma of coatings, which is essential for the control of Color conformity in the Coatings industry. ISO 7724-1 applies to a wide range of paint films and related materials, ensuring their Color conformity and accuracy during production and application. The implementation of this standard helps to ensure Color Stability of coatings at different times and conditions, thus meeting the needs of various Applications.