Torsional Stiffness Tester measures rigidity of leather samples.
October 15, 2010 -
Torsional stiffness apparatus 108 measures flexibility and stiffness of leather or other bendable specimen. Mounted to rigid stand, instrument includes torsion head with dial protractor that is turned in plane normal to device's fixed torsion wire, until specimen is twisted 90°. Torsion values are obtained by measuring applied angular twist required to reorient sample 90° or other specified setting. Unit is based on apparatus described in test method ASTM D2821.
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Original Press release
Paul N. Gardner Co., Inc.
316 N.E. 1st St., Dept. TR
Pompano Beach, FL, 33060 6608
USA
Torsional Stiffness Apparatus 108
Stiffness Tester Model 108 is based on the torsion apparatus described in test method ASTM D2821 Standard Test Method for Measuring the Relative Stiffness of Leather by Means of a Torsional Wire Apparatus. It is used to measure the flexibility and stiffness of a leather or other bendable specimen and has been shown to be a reliable method of evaluating the relative stiffness of leather used in gloves.
Simple to use, rugged design provides repeatable test results.
Mounted to a rigid stand, the instrument consists of a torsion head, fixed torsional wire and specimen clamping system. A specimen is affixed to a weighted clamp secured at the bottom of a torsion wire. A torsion head equipped with a dial protractor is turned in a plane normal to the torsion wire until the specimen has been twisted 90°. Torsion values are obtained by measuring the applied angular twist required to reorient the sample 90° or some other specified setting.
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