According to the mission of the Institute of Intelligent Gas Metering to improve metering in the National Iranian Gas Company, relying on the scientific potential of universities / research centers and using the capacity of private companies, and considering the need to review the methods of calculating operational gases, All experts and interested parties are requested to announce their readiness by sending a resume to info@flowmeasurement.ir by December 11, 2016, if they wish to cooperate in the issue of calculating operational gases.