This standard specifies a specific test method for measuring the initial tack of adhesive tapes using the loop method. The core of this method involves forming the adhesive tape into a loop with the non-adhesive sides facing each other, bringing it into contact with a standard test plate (typically stainless steel or glass) at a specified speed, and then rapidly separating it. The initial tack performance is quantified by recording the maximum force required during the separation process. The key equipment for conducting this test is a tensile testing machine, which must be capable of precisely controlling the speed and angle at which the loop sample contacts and separates from the test plate, as well as accurately recording the separation force. This method provides a unified testing standard for evaluating the initial adhesion of adhesive tape products, particularly those intended for applications requiring rapid bonding.