The factors contributing to the uncertainty are discussed for the measurements that were conducted for the 2 MN and 4MN force values of the very high force CIPM key comparison. Details of the statistical analysis by the pilot institute, NIST, are provided. Various options for calculating the reference values and degrees of equivalence are presented, accounting for the uncertainty differences associated with the comparison force transfer standards and with the force standard machines of the participating institutes.
Proceedings Title: Proceedings of the IMEKO 20th TC3, 3rd TC16, and 1st TC22 International Conference
Conference Dates: November 27-December 1, 2007
Conference Location: Merida, MX
Conference Title: IMEKO 20th TC3, 3rd TC16 & 1st TC22 International Conference Force, Mass, Torque, Density, Pressure, Vacuum and Vibrations
Pub Type: Conferences
degrees of equivalence, force, force standard, key comparison, metrology, reference value, transfer standard, uncertainty