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Gravimetric wear analysis

Gravimetrical measurements are used as the standard method to determine wear rates of implants. Depending on the bearing material (e.g. hard-on-hard bearings), very low wear rates have to be expected. Therefore, a high measurement accuracy is necessary. Thus, measurements are carried out in an air-conditioned precision measurement room using a high precise analytic balance (Sartorius ME235S, repeatability: 15g). Using established and validated measurement protocols, the accuracy of measurements is further increased. Reference weights are used to control the quality of the balance.

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