The oscillation or reciprocation frequency should range from 0.05 Hz to 2 Hz, and testing may be conducted at two or more frequencies. If only one frequency is used, 1,7 Hz 0,1 Hz is advised. Larger amplitudes often result in greater sensitivity, but the practical range of amplitudes is constrained by the potential of slippage between the test pieces and the die surface or rotor. An amplitude of 1° is recommended for oscillating-disc curemeters. However, 3° may be feasible and valuable in some cases. For reciprocating curemeters, the range may be between 0,01 mm and 0,1 mm or between 0,1° and 2° for rotorless curemeters.

The vulcanization temperature is chosen as that appropriate for the rubber compound being tested and intended processing. The range of 100 °C to 200 °C is recommended.

NextGen’s RPA Ultra – Advanced Rubber Process Analyzer Rheometer complies with ISO 6502 standard.

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