The customer stated that they used caviwipes to clean the calibration bar.Per the instrument manual, the calibration bar should only be cleaned with di water to avoid deterioration or discoloration of the bar.Siemens recommended that the test table, which includes the calibration bar, be replaced, and a correlation study should be run to confirm the issue has been resolved.The customer did not provide the study results and stated that remaining reagent was not available to be returned.Therefore, further investigation is not possible.The cause of this event is unknown.
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