The Brinell hardness test blocks are used for the yearly, indirect verification and calibration of Brinell hardness tester as well as the cyclic (daily) check of the hardness tester.
The hardness test blocks Made in UK are delivered with a UKAS-Certificate according to ISO 6506-3 and ASTM E10.
Below a hardness value of 200 Brinell the hardness test blocks are made of aluminium. The surface are either gleaming polished or matted.