The standard specifies a method for determining the disbonding strength of coated fabrics for membrane structures. It is suitable for synthetic fiber or fiberglass fabrics as base fabrics, and the surface of the base fabric is covered with a continuous layer of polymer by a dipping, coating or lamination process as a coating fabric for membrane structures. Terms and definitions include disbonding strength, complete disbonding, incomplete disbonding and delamination disbonding. The principle of the test is to disbond the sample coating to the base fabric for a length at a constant speed under specified conditions, record the disbonding Linear dispersion during the disbonding process, and calculate the disbonding strength of the sample. The required instruments include an isokinetic elongation tester capable of indicating or recording the tensile and elongation conditions on the sample.