Development of the Reference Base and Means of Metrological Assurance of Gas Analytical Measurements in the Russian Federation

This article presents the history of the formation of the reference base and metrological infrastructure of gas analytical measurements in the Russian Federation. The state primary standard of the units of molar fraction, mass fraction, and mass concentration of components in gas and gas condensate environments, that is, GET 154-2019, is described. The main metrological characteristics of GET 154-2019 are presented and compared with the metrological characteristics of similar standards of the top national metrological institutes of other countries. Information on the inclusion of the aforementioned standard of different generations in international key comparisons conducted under the auspices of the Consultative Committee for Amount of Substance of the International Bureau of Weights and Measures is provided. The assessment of metrological support for gas analytical measurements in the Russian Federation is presented. The current tasks involved in gas analytical measurements in the fields of environmental control (i.e., control of emissions of pollutants, greenhouse gases, atmospheric air, and working area air), oil and gas industry (i.e., control of the composition of hydrocarbon raw materials and products of its processing), and control of the presence of ethanol vapors in exhaled air are also presented. The role and capabilities of GET 154-2019 in ensuring the uniformity of measurements for the transfer of units of the content of components to measuring instruments are described.