Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
Next revisionBoth sides next revision
articles:nist_traceability [2018/12/14 12:34] – [What are SI Units?] rrandallarticles:nist_traceability [2019/01/25 09:28] – [An "unbroken chain of calibrations" to what?] rrandall
Line 62: Line 62:
 \\ \\
 [[http://www.isobudgets.com/measurement-traceability-complying-iso-17025-requirements/|{{ :articles:measurement-traceability-pyramid-600px.jpg?direct }}]] [[http://www.isobudgets.com/measurement-traceability-complying-iso-17025-requirements/|{{ :articles:measurement-traceability-pyramid-600px.jpg?direct }}]]
 +
 +I describe the above pyramid as "//typical//" because, contrary to the antiquated language of ISO 9001:2015 & AS9100, it is possible to “bypass” the National Metrology Institutes (NMIs) to obtain traceability to SI units. 
 +
 ===== What are SI Units? ===== ===== What are SI Units? =====
 {{ :articles:2018-si.png?direct&130|}} {{ :articles:2018-si.png?direct&130|}}