รายละเอียดเอกสาร

Before proceeding with these test methods, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, and testing parameters covered in the materials specification shall take precedence over those mentioned in these test methods. If there is no material specification, then the default conditions apply. The pendulum impact test indicates the energy to break standard test specimens of specified size under stipulated parameters of specimen mounting, notching, and pendulum velocity-at-impact. The energy lost by the pendulum during the breakage of the specimen is the sum of the following: Energy to initiate fracture of the specimen; Energy to propagate the fracture across the specimen; Energy to throw the free end (or ends) of the broken specimen (“toss correction”); Energy to bend the specimen;

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