APMP.M.H-S3 Final Report Comparison on Hardness ... - BIPM

Revision: <strong>Final</strong> <strong>Report</strong>
Date: May 25, 2012
Uncertainty budget for ___ HRB 25 55
Quantity Estimated
Standard Sensitivity Uncertainty
value
uncertainty coefficient contribution
X i
Primary Hardness machine
Dx i
xi
uxi
3
C i u i (H )
Hphs 0.5 0.25 0.25 1 0.250
Res. Of Primary Hardness
machine Hres 0.01 0.005 0.003 1 0.003
Repeatability of
measurement Hrep 0.16 0.08 0.08 1 0.080
Combined uncertainty, u c
0.263
Expanded uncertainty, Ue k=2 0.53
Uncertainty budget for ___ HRB 100 55
Quantity Estimated
Standard Sensitivity Uncertainty
value
uncertainty coefficient contribution
X i
Primary Hardness machine
Dx i
xi
uxi
3
C i u i (H )
Hphs 0.5 0.25 0.25 1 0.250
Res. Of Primary Hardness
machine Hres 0.01 0.005 0.003 1 0.003
Repeatability of
measurement Hrep 0.07 0.035 0.035 1 0.035
Combined uncertainty, u c
0.252
Expanded uncertainty, Ue k=2 0.50
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