The standard GB/T 1732-1993 "Method for the determination of impact resistance of paint films" specifies a method for impact testing of paint films with a fixed mass of heavy hammer falling from a specific height. Impact performance of paint films is assessed by measuring the maximum height (expressed in centimeters) at which heavy hammer falling does not cause damage to the paint film. This standard is applicable for evaluating the impact resistance performance of various painted products and describes in detail the equipment required for the test, the preparatory requirements of the test plate, and the test steps. The test results should be recorded in the test report, including product information, standard references, experimental conditions, detailed test records and dates to ensure the accuracy and comparability of the data.