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Abstract:	The calibration of unit-under-test (UUT) attributes is examined within the context of several scenarios. Each scenario yields a calibration result and a description of measurement process errors that accompany this result. This information is summarized and then employed to obtain an uncertainty estimate in the calibration result. The approach taken is one in which the uncertainty estimate can be applied to estimate measurement decision risk, UUT attribute bias and in-tolerance probability. The measurement decision risks discussed are those that are relevant to meeting Z540.3 requirements as well as internal quality control criteria. They include false accept risk (FAR) and the false reject risk (FRR). FAR is computed both as a process-level and bench-level control metric. Examples are given to illustrate concepts and procedures.