Gehman Stiffness Tester | No.223---
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- The Gehman Stiffness Tester evaluates stiffness or rubber at low temperature according to ISO 1432.
- The testing operation is automatic and specimens are twisted by means of a wires of known torque at programmed test temperature.
- The angle of twist produced at this time is detected and is sent to the data processing unit.
| Model | GS-2 |
| Number of samples | 4 samples max. |
| Dimensions of sample | 3(width) × 2(thickness) × 40(length)mm |
| Sample grips span | 25±3mm |
| Test temperature range | -70°C to +23°C |
| Heat conducting material | Ethanol |
| Cooling system | Refrigerator system |
| Temperature control accuracy | ±1°C |
| Angle of twist | 180° |
| Twist angle detection | Least count 0.1° |
| Power supply |
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| Dimensions | W300 × D500 × H930mm |
| Weight (Approx.) |
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Related standards
| ISO 1432 | Rubber, vulcanized or thermoplastic — Determination of low-temperature stiffening (Gehman test) |