Hardness Reference Blocks for All Scales
With official calibration certificates UKAS, DKD or ASTM
CV Instruments hardness reference blocks are used for annual verification and calibration of hardness testing machines, as well as for periodical check and sometimes for overtaking of hardness scales on a hardness testing machine. That’s why hardness reference blocks are a necessary help of industrial Quality Management. Only the use of high quality, precise hardness reference blocks calibrated to applicable standards can ensure the functionality and relative reliability and accuracy of measurement of a hardness testing machine.
When using hardness reference blocks it is irrelevant whether the value of the nominal hardness to be delivered corresponds exactly to the actual calibration value observed, since scale adaptation should be carried out with at least two hardness values.
A hardness reference block shall only be used as according to the standards to that method and test condition for which it was calibrated.
CV Instruments certified hardness reference blocks are available as follows and all conform to the international standards as mentioned above.