Due to the very large number of tests offered, descriptions of those most commonly requested have been gathered into the following groups:

ASTM D256 Izod Pendulum Impact Resistance of Plastics

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ASTM D256 covers the determination of the resistance of plastics to “standardized” pendulum-type hammers, mounted in “standardized” machines, in breaking standard specimens with one pendulum swing. The standard test for ASTM D256 requires specimens to be made with a milled notch. Touchstone is also able to perform the technically equivalent standard ISO 180 – Determination of Izod Impact Strength of Rigid Materials.

The excess energy 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.

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 ASTM D256 – Standard Test Method for Determining the IZOD Pendulum Impact Resistance of Plastics

Reference: ISO 180: Plastics – Determination of Izod Impact Strength of Rigid Materials