COMPARISON OF NIST SI FORCE SCALE TO NPL SI MASS SCALE

摘要

In this work the newly emerged independent force traceability route has been verified against the mature traceable mass scale at a level not previously attempted. The use of sub-milligram test masses on the NIST EFB has successfully led to the identification of a systematic error of nanonewton size that may now be removed or corrected for. This work exemplifies the benefits of international cooperation between NMIs to bring added value to their individual stakeholders.