This standard is a test method document for evaluating the bonding performance between sealants and substrates. It specifically describes a testing method known as the "strip peeling method," which is suitable for assessing the adhesion of sealants with a minimum elongation at break greater than 25% to various substrates such as glass, aluminum, aluminum-plastic panels, and stone. The method provides a standardized operational procedure for evaluating the adhesion strength and durability of sealants under specific conditions. Related testing operations typically require professional testing equipment, such as a peeling tester capable of meeting specific tensile speed requirements, to carry out standardized peeling processes and obtain precise mechanical data. This standard adopts with modifications the international standard ISO 23658:2020, which helps align testing technologies in this field in China with international requirements.