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

Revision: <strong>Final</strong> <strong>Report</strong>
Date: May 25, 2012
<strong>Report</strong> Form3 - Result of the Rockwell hardness scale B measurements
Laboratory: Measured Checked Measured
PTB by: Febo Menelao
by: S. Lutz
measured value
date: 1 st June 2010
Hardness Block Number E1620 B30120 A31382 A32411 A33748 A34522 A35542 25566 30836
Nominal Value (HRBW) 25 30 40 50 60 70 80 90 100
Page 4/6
Section 1 23.22 28 .84 37.86 51 .05 60.13 70 .32 79.25 89 .73 99 .76
Section 2 23.34 28 .88 37.69 51 .12 60.49 70 .19 79.49 90 .03 99 .76
Section 3 22.99 28 .94 37.54 51 .05 59.94 69 .90 79.32 90 .01 99 .74
Section 4 22.76 28 .32 37.56 50 .77 59.71 69 .66 79.73 90 .01 99 .67
Section 5 23.55 28 .38 37.29 50 .87 59.46 69 .68 79.38 90 .00 99 .70
Section 6 23.38 28 .50 37.85 50 .99 59 .67 69.75 80 .24 90 .01 99.60
Section 7 23.66 28.34 37 .52 50 .93 60 .04 69.80 80 .04 90 .05 99.60
Section 8 23.32 28.43 37 .78 50 .82 60 .09 69.71 79 .67 90 .02 99.61
Section 9 23.89 28.70 37 .78 50 .91 60 .04 69.89 79 .45 89 .96 99.65
Average Value 23.35 28 .59 37 .65 50 .95 59.95 69.88 79 .62 89 .98 99.68
Uniformity 0.34 0.25 0.19 0.12 0 .30 0 .23 0.34 0 .10 0.07
Correction Value
Corrected Value 23.35 28 .59 37 .65 50 .95 59.95 69.88 79 .62 89 .98 99.68
Expanded uncertainty (k= 2) 0.56 0.53 0.52 0.51 0 .54 0 .53 0.55 0 .50 0.50
Remark: In case of the participant made an incorrect indentation or is unsure about the measurement value, please report to the pilot institute.
Page 33 of 77