The GB/T 32644-2016 "Test Methods for Chemical Durability of Flat Panel Display Substrate Glass" standard specifies a method for testing the durability of flat panel display substrate Glass after exposure to chemical reagents. The standard applies to evaluating the performance Stability of Glass in a chemical environment. Test methods include the weight loss method, which calculates durability by measuring the weight change of the sample before and after the chemical reagent immersion; and the haze method, which measures the degree of ambiguity on the surface of Glass due to the action of chemical reagents. The implementation of the standard helps to ensure the Reliability and long life of display substrates in practical applications.