... accuracy. Hardness measurements to standard scales of HB, HV, HRB & HRC. Technical parameter. Order itemValueUnitMeasurement range20 -1740HV(Vickers)Temperature rangeOperation:- 15 ... test indentation using UCI method under load.Conversion rangeHV, HB, HRC, and HRB, referring to DIN50150,ASTME140N/mm2 (onlyat98 N probe ...