HARDNESS TESTERS CALIBRATION PRACTICE

Giulio Barbato, Alessandro Germak, Claudio Origlia, Francesco Turotti, Manfredo Vattasso
Abstract:
In the framework of the standardization and laboratory activities concerning the calibration of hardness testers, in particular for indirect verification there are some questions to be answered to decide an efficient metrological confirmation strategy: a) how many points on each scale shall be checked? b) How many levels of the indentation scale shall be checked? c) How many levels of forces shall be checked? d) Is the correlation between indirect results and direct results strong enough to allow a partial check of the hardness scales of the tester? A number of tests have been made and the results have been statistically elaborated to give an answer to these questions.
Keywords:
hardness, calibration, hardness tester
Download:
IMEKO-TC5-2004-004.pdf
DOI:
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Event details
IMEKO TC:
TC5
Event name:
Hardness Measurements Theory and Application in Laboratories and Industries
Title:
9th HARDMEKO 2004
Place:
Washington, DC, USA
Time:
11 November 2004 - 12 November 2004