The force ductility of an asphalt material is determined by measuring the tensile stress induced on a specimen when two ends of a briquet specimen of the material are pulled apart at 5 cm/min (2 in./min) and at a specified temperature. Unless otherwise specified, the test shall be performed at a temperature of 4.0 ± 0.5°C (39.2 ± 1.0°F) and a speed of 5 cm/min (2 in./min) ± 5.0 percent. The test is designed primarily for polymer-modified emulsions.