Metrosert is the Estonian NMI operating national measurement standards. It also maintains AC resistance and capacitance scales. The further development of research potential in the field of electrical impedance, including inductance measurements is foreseen at Metrosert. Metrosert has experience in the development of algorithms based on sampling relating to a primary power standard. Metrosert will contribute to the review of existing setups in Work Package 1, the design of a digital bridge in Work Package 2 and also will lead Work Package 3 related to compiling of the good practice guide.