The ASTM D 3430-1995 standard specifies the test method for transparency and yellowing of liquid water-based transparent floor polishes, which is suitable for evaluating the Optical Properties and durability of polishes in practical applications. The test method provides a scientific basis for mass evaluation of polishes by quantitatively measuring transparency and yellowing due to aging or environmental effects. The test process includes sample preparation, Optical inspection measurement and data analytics, and emphasizes the conformity and repeability of the test conditions. The standard provides technical support for the development, quality control and product optimization of floor polishes, and is widely used in the production and performance verification of floor care products.