Electromechanical screw driven Tensile machine

I would like to know what is the role of data sampling, data capture rate and bandwidth in case of electromechanical static tensile test. What are their optimum values for a static tensile test of metals according to ASTM standards.

We are deciding to buy Instron 5567 series for 50kN. But we are unable to decide whether that high data acquisition rate, bandwidth is required. Please suggest.