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Director of NIST (1994), Dr. John W. Lyons, wrote,

Director of NIST (1994), Dr. John W. Lyons, wrote, “ It is generally agreed that the usefulness of measurement results ….is to a large extent determined by the quality of the statements of uncertainty that accompany them.” (From Technical Note 1297; 1994 ). GDC: data point.

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Director of NIST (1994), Dr. John W. Lyons, wrote,

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  1. Director of NIST (1994), Dr. John W. Lyons, wrote, “It is generally agreed that the usefulness of measurement results ….is to a large extent determined by the quality of the statements of uncertainty that accompany them.” (From Technical Note 1297; 1994)

  2. GDC: data point Data point Expanded uncertainty Properties Expanded combined uncertainty State variables Expanded uncertainty

  3. Derivation of combined uncertainty Data point Expanded uncertainty of property Expanded combined uncertainty Derivatives by state variables Expanded uncertainties of state variables

  4. Sources of information CalcUncertainty function Repeatability Device specification Calibration/Comparison Method/Device Method specifications Uncertainty Scattering/deviations Expert judgment (quality factor) GDC software Literature source TRC

  5. Uncertainty specification form

  6. Uncertainty calculation

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