1994 Edition (Supersedes 1993 Edition)
Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results
Barry N. Taylor and Chris E. Kuyatt
A method of evaluating and expressing uncertainty in measurement adapted from NIST Technical Note 1297. | TN 1297 also available as a PDF file To view documents which are "pdf files," Adobe Acrobat Reader is required. This software may be downloaded without charge. |
2. Classification of Components of Uncertainty
3. Type A Evaluation of Standard Uncertainty
4. Type B Evaluation of Standard Uncertainty
5. Combined Standard Uncertainty
Appendices
A: Law of Propagation of Uncertainty
C: Statements of Uncertainty Associated with Measurement Results
D: Clarification and Additional Guidance
D.1 Terminology
D.2 Identification of uncertainty components
D.3 Equation (A-2)
D.4 Measurand defined by the measurement method; characterization of test methods; simple calibration
D.5 tp and the quantile t1-α
D.6 Uncertainty and units of the SI; proper use of the SI and quantity and unit symbols
D.7 References