Beckman Coulter—AU Lyophilized Chemistry Level 1 Calibrators: May Not Be Paired with Level 2 Calibrator

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​Beckman Coulter states that unpaired lots of the above level 1 calibrators have been distributed with level 2 calibrators with which they are not paired. Beckman Coulter also states that level 1 and 2 calibrators must be paired when used for calibration and cannot be used in any other combination. Paired calibrator lots are identified by the last two digits of the lot number. The following are examples of...