Office of Standardization, metrology and testing of the Slovak republic granted authorization to company KRIZIK GBI, a. s. for carrying out national verification of specified meters (mark M57) and European Community primary verification of specified meters (mark e^SK₅₇) - electricity meters.

Carrying out national verification of specified meters or European Community primary verification of specified meters is possible to ordet directly in company KRIZIK GBI, a. s.