Measuring methods for static shear adhesion of self-adhesive tapes are specified in the standard "ISO 29863-2018 Self-adhesive tapes, measurement of static shear adhesion". The standard evaluates the adhesion performance of tapes by testing their shear strength under vertical loading over a certain period of time. Static shear adhesion is a measure of the ability of tapes to maintain adhesion under long-term stress conditions and is widely used to evaluate the tack, durability and Stability of tapes. The test method is required to be carried out under specific temperature and Humidity conditions and is applicable to different types of self-adhesive tapes. The standard helps to ensure the Reliability of tapes in actual use, especially in application scenarios where long-term stable adhesion is required.