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

Revision: <strong>Final</strong> <strong>Report</strong>
Date: May 25, 2012
<strong>Report</strong> Form 4 Uncertainty budget of measurement Page 5/5
Uncertainty budget for ___ HRA 35 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 Res. Of Primary Hardness
0.3 0.15 0.15 1 0.150
machine Hres 0.01 0.005 0.003 1 0.003
Repeatability of
measurement H rep 0.09 0.045 0.045 1 0.045
Combined uncertainty, u c
Expanded uncertainty, Ue k=2 0.31
0.157
Uncertainty budget for ___ HRA 85 55
Quantity Estimated
Standard Sensitivity Uncertainty
value
uncertainty coefficient contribution
X i Dx i
x i
u u
x i
3 C i u i (H )
Primary Hardness machine
Hphs
Res. Of Primary Hardness
0.3 0.15 0.15 1 0.150
machine Hres Repeatability of
0.01 0.005 0.003 1 0.003
measurement Hrep 0.07 0.035 0.035 1 0.035
Combined uncertainty, u c
0.154
Expanded uncertainty, Ue k=2 0.31
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