ASTM D790
The ASTM D790 test method establishes the performance for flexural testing of a variety of plastics. The test method can effectively measure the strength and stiffness of reinforced and unreinforced plastics, high-modulus composites, and electrical insulating materials. The test methods also apply to rigid and semi-rigid materials in the form of molded bars or sheets, plates, or cut shapes.

Schematic Diagram

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