Wheel Hub Measurement Uncertainty: Decision Rule and Conformance Review
Define the exact measurand, datum, method, unit and specification limit first. Review the contributors and stated uncertainty for the actual setup, range and conditions, then agree how uncertainty enters the conformity decision before results are known. Record any guard band, false-accept and false-reject considerations, borderline-result treatment and authorization. Report the measured value, expanded uncertainty and decision rule together where required. Do not invent a universal uncertainty ratio or silently convert a value inside the drawing limit into unconditional conformity.