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Thwing-Albert Mechanical Elmendorf ProTear The mechanical version of the ProTear® Tear Tester. This tear tester provides the same pendulum configuration without the electronics. It is designed for easy capacity changes, with a range of 400 - 6,400 grams. Adheres to:
The operation of the ProTear is easy —simply secure the sample in the two clamps, make an initial tear with the attached blade and release the pendulum. The tearing resistance of the material is measured via the transference of the potential energy stored in the raised pendulum to kinetic energy. A portion of this energy is absorbed during the tearing of the sample and is used as a measure of the materials resistance to a continuing tear. The energy required to tear the sample is reported as a percentage of the pendulum capacity or force. |
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