Test Accuracy Ratio (TAR) VS Test Uncertainty Ratio (TUR) and statements of compliance.
Accredited laboratories are required to determine the Calibration Measurement Capabilities (CMC) which represented a 95% probability (k=2) that a published measured value would be correct. In the past the CMC was posted to a certificate of calibration. Later, labs were required to calculate Measurement Uncertainties. MU’s are now posted toContinue Reading