ISO 458-1 and ISO 458-2 are testing methods for determining the stiffness of plastic materials by torsion testing. ISO 458-1 defines testing conditions for torsion testing plastic below 0 C. The goal of torsional testing is to determine the torsional modulus of elasticity of plastic. The testing apparatus used for torsion testing plastic should be capable of measuring instantaneous torque and angle of deflection.
Equipment Required
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Recommended Test Machine
Forces up to 10 kN (2,250 lbf)
Low force tabletop systems
Modular series of five frame options with adjustable test space
Affordable testing option for tension, compression, bend, peel and much more
Axial Load Capacity: 0.8 to 300 kN (180 to 67000 lbf)
Torsion Capacity: 1 to 300 Nm (9 to 2655 in-lb)
Static and dynamic options available
Torsion Capacity: 1 Nm to 5650 Nm (9 to 50,000 in-lb)
Type: Electromechanical Gear or Electrodynamic Direct Drive
Available in both horizontal and vertical orientations
