ISO 6272-2-2011 "Paints and varnishes rapid deformation (anti-impact) test, Part 2: Drop weight test, small area indenter" describes a method for evaluating the adhesion performance of coatings to substrates when subjected to the action of a falling object. This standard applies to a variety of paints and varnishes that apply rapid deformation forces under standard conditions of small area spherical indenters by drop weight to simulate real-world stress situations. The revised second edition adds diagrams of the test device and adjusts the conditions under which the test is performed, eliminating the requirement to test at a specific relative humidity. In addition, the method also emphasizes the limitations of testing, such as reproducibility issues when testing between laboratories. The purpose of ISO 6272-2-2011 is to ensure the Reliability and durability of coatings under the conditions of use, providing an important reference for the quality control of coated products.