For the accredited calibration of your hardness tester, you will need a valid calibration certificate (DIN EN ISO and/or ASTM) for each indenter used; otherwise, calibration is not possible. An indenter can generally be used for 2 years from the date of its first use. After this period, dimensional accuracy is often no longer guaranteed, and it must be recalibrated or replaced.
We would be happy to bring suitable indenters to your calibration appointment upon request. You can find corresponding offers in our online shop.
Note:
Attractive offers for hardness reference blocks for your “regular verification” according to the standard (DIN EN ISO 6506-1, 6507-1, 6508-1) can also be found in our online shop. These should be recalibrated or replaced after 3 years (aluminum) or 5 years (steel).
