The test method specified in ISO 11339 is used to determine the peel strength of adhesives used in a T-shaped bonded assembly of two flexible adherents bonded together. This allows the user to understand the strength of the adhesive and to determine results, such as average peel force, and maximum and minimum peeling forces. The ISO 11339 test method is suitable for self-adhesive tapes that are prepared under the relevant guidelines within this test standard. For a T-peel test for a flexible-to-flexible assembly, the force is applied to the unbonded ends of the specimen . The angle between the bond line and the direction of the applied force is not fixed.

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