ASTM D747-10Standard Test Method for Apparent Bending Modulus of Plastics by Means of a Cantilever Beam
ASTM D747 is used to determine the flexibility of plastics by means of a cantilever beam. It measures flexibility, or apparent bending modulus, when test specimens are supported as a cantilevered beam and are deflected through an angle of force and angle of bend of the specimen.
Note this test standard was withdrawn in 2019 and not replaced.
Before conducting ASTM D747, it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.