1. NCSLI 2014
Traceability Considerations for the Characterization of Measuring Systems Charles D. Ehrlich NIST Office of Weights and Measures Physical Measurement Laboratory

2. Traceability Considerations for the Characterization of Measuring Systems
Motivations for understanding the different ways that people characterize measuring instruments and systems: - to underpin understanding of how test accuracy ratio (TAR) and test uncertainty ratio (TUR) are used regarding uncertainty and traceability; - to chronicle the different ways that common terms are used to denote different types of instrument and system characterizations (for the VIM); - to develop a paper that can serve as a single reference for legal metrology applications (for OIML Uncertainty Document).

3. Traceability Considerations for the Characterization of Measuring Systems
Some terms used for the characterization of measuring systems: calibration testing adjustment (to actual, to nominal) - physical (user?) - software type evaluation verification

4. Traceability Considerations for the Characterization of Measuring Systems

5. Traceability Considerations for the Characterization of Measuring Systems

6. Traceability Considerations for the Characterization of Measuring Systems
VIM3: (6.11) calibration operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncer­tainties and, in a second step, uses this information to establish a relation for obtaining a measurement result from an indication

7. Traceability Considerations for the Characterization of Measuring Systems

8. Traceability Considerations for the Characterization of Measuring Systems

9. Traceability Considerations for the Characterization of Measuring Systems
VIM3: adjustment set of operations carried out on a measuring system so that it provides prescribed indications corresponding to given values of a quantity to be measured

10. Traceability Considerations for the Characterization of Measuring Systems

11. Traceability Considerations for the Characterization of Measuring Systems
VIM3: verification provision of objective evidence that a given item fulfills specified requirements

12. Traceability Considerations for the Characterization of Measuring Systems

13. Traceability Considerations for the Characterization of Measuring Systems

14. Traceability Considerations for the Characterization of Measuring Systems

15. Traceability Considerations for the Characterization of Measuring Systems

16. Thoughts on how broadly the term “calibration” should be used?
Traceability Considerations for the Characterization of Measuring Systems
Thoughts on how broadly the term
“calibration” should be used?
- Other Thoughts?

17. Traceability Considerations for the Characterization of Measuring Systems
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