Brinell
Hardness testers for measurements conducted using the Brinell ISO 6506 method are most commonly used in heavy industries and employ optical measurement devices. Imprint diameters are measured with a microscope or camera after pressing an indenter with a force of 1 kgf/9.8 N to 3000 kgf/29 kN. The measured data are used to calculate the corresponding hardness values. Individual measurements can be assessed automatically or semi-automatically.