INSTALLATION AND UNCERTAINTY EVALUATION OF REFERENCE HARDNESS STANDARD OF CROATIA

Željko Alar, Mladen Franz, Tamara Aleksandrov, Sanja Šolic
Abstract:
Reference hardness standard with HV1 – HV50 measuring range was installed at LIMS (Laboratory for Testing Mechanical Properties) at the end of 2007 with the aim of providing continuous improvement of the metrology infrastructure of Croatia. The evaluation of the measurement uncertainty is one of the most important tasks for establishing this reference standard. Therefore, the influence quantities contributing to the uncertainty were determined and the machine calibrated by direct and indirect method. In this paper the results of the measurements are presented and discussed.
Keywords:
hardness of metals, reference hardness standard, measurement uncertainty
Download:
IMEKO-WC-2009-TC5-382.pdf
DOI:
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Event details
Event name:
XIX IMEKO World Congress
Title:

Fundamental and Applied Metrology

Place:
Lisbon, PORTUGAL
Time:
06 September 2009 - 11 September 2009