"FZ/T 60038-2013 Test method for anti-fouling performance of coated fabrics for membrane structures" specifies the method for testing the anti-fouling performance of coated fabrics for membrane structures. The standard applies to the use of synthetic fibers or fiberglass fabrics as base fabrics, and after impregnation, coating or lamination, the surface is covered with a continuous layer of polymer for coating fabrics for membrane structures. The standard also states that similar outdoor stiff fabrics can be used by reference. Tests include assessing the stain resistance and ease of cleaning of the material, by placing the sample in a test cartridge containing solid dirt, flipping and rinsing, and evaluating its performance using a stained grey sample card.