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

Revision: <strong>Final</strong> <strong>Report</strong>
Date: May 25, 2012
To ensure that the SCL’ measurement results would not effect the other results, the evaluation on Rockwell scale B was done again without
SCL’s measurement results. The comparison results, comparison reference value (CRV), the deviation value of each NMIs from CRV as well as
their uncertainty and En ratio, are calculated and shown in Table 17, Figure 6 and Figure 7.
Table 16 Conclusion of comparison evaluation on Rockwell hardness scale B without SCL’s results
Nominal (HRBW) 25 30 40 50 60 70 80 90 100
CRV 23.89 28.92 37.82 51.05 59.63 69.83 79.61 90.27 99.94
U(CRV) 0.27 0.29 0.26 0.26 0.26 0.25 0.26 0.24 0.24
D_NIMT 0.24 -0.35 -0.05 -0.01 0.00 -0.18 0.01 0.22 0.15
U(D_NIMT) 0.48 0.58 0.48 0.48 0.48 0.47 0.48 0.47 0.47
En ratio NIMT 0.49 -0.61 -0.10 -0.02 0.01 -0.38 0.02 0.48 0.32
D_PTB -0.54 -0.33 -0.16 -0.11 0.33 0.05 0.01 -0.29 -0.27
U(D_PTB) 0.62 0.60 0.58 0.57 0.60 0.58 0.61 0.56 0.56
En ratio PTB -0.87 -0.55 -0.28 -0.19 0.54 0.09 0.02 -0.52 -0.48
D_KRISS -0.30 0.53 0.77 -0.05 0.16 0.34 0.25 0.10 0.16
U(D_KRISS) 0.80 0.80 0.79 0.79 0.65 0.65 0.65 0.65 0.65
En ratio KRISS -0.38 0.66 0.97 -0.07 0.25 0.52 0.38 0.15 0.24
D_NPLI 0.39 0.59 -0.17 0.20 -0.57 0.00 -0.25 -0.13 -0.08
U(D_NPLI) 0.75 0.67 0.65 0.65 0.65 0.58 0.62 0.56 0.56
En ratio NPLI 0.53 0.89 -0.26 0.31 -0.87 0.01 -0.40 -0.24 -0.14
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