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

Revision: <strong>Final</strong> <strong>Report</strong>
Date: May 25, 2012
<strong>Report</strong> Form2 - Result of the Rockwell hardness scale A measurements (35 - 85 HRA)
Laboratory: KRISS Measured Checked
by: N.H. Tak by: G.W. Bahng
Measured
date: SEP 30 , 2010
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Hardness Block Number A32517 A33781 25568
Measured value
B12037 B15871 A27761 A21048
Nominal Value (HRA) 35 40 55 60 70 80 85
Section 1 36.4 40.0 54.7 60.2 70.7 81.2 85.5
Section 2 35.4 39.2 54.9 60.2 70.8 81.4 85.5
Section 3 35.6 39.9 55.0 60.4 70.8 81.4 85.5
Section 4 35.6 39.3 55.0 60.4 70.7 81.3 85.4
Section 5 35.4 39.7 54.9 60.3 70.7 81.4 85.5
Section 6 35.6 39.3 55.0 60.4 70.6 81.4 85.3
Section 7 35.3 39.3 54.8 60.3 70.8 81.4 85.5
Section 8 35.4 39.0 54.9 60.3 70.7 81.4 85.4
Section 9 35.5 39.1 54.9 60.2 70.6 81.4 85.3
Average Value 35.58 39.42 54.90 60.30 70.71 81.36 85.43
Uniformity 1.1 1.0 0.3 0.2 0.2 0.2 0.2
Repeatability 0.12 0.13 0.04 0.03 0.03 0.02 0.03
Correction Value -0.03 -0.03 -0.03 -0.04 -0.04 -0.04 -0.04
Corrected Value 35.55 39.39 54.87 60.26 70.67 81.32 85.39
Expanded uncertainty (k=2) 0 .46 0.47 0.40 0.40 0.40 0 .40 0.40
Remark: In case of the participant made an incorrect indentation or is unsure about the measurement value, please report to the pilot institute.
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