State Primary Standard for the Pressure Unit in the Field of Absolute Pressure in the Range 1 · 10–1 – 7 · 105 Pa GET 101–2011: Analysis of the State and Development Trends

   Issues related to the developmet and improvement of the metrological support system of the Russian Federation in the field of absolute pressure are considered; the main stages and results of theoretical and practical research work in the field of absolute pressure measurements carried out at the D. I. Mendeleyev Institute for Metrology are outlined. Historical information on the creation of primary standards and verification schedules in the field of pressure measurement is presented. A brief analysis of the state and development trends of world metrology in the field of absolute pressure measurement is carried out based on literature data and the results of key comparisons. The reasons for improving the State Primary Standard of the pressure unit in the field of absolute pressure are outlined, and ways to modernize the standard are proposed.The operating principles and design features of reference complexes from the State Primary Standard for the pressure unit in the field of absolute pressure GET 101–2011 are described. The main metrological characteristics of the standard are listed; the results of key comparisons, benchmark studies and international cooperation are published. The existing problems of the reference base of the Russian Federation in the field of absolute pressure and ways to improve the primary standard are outlined and analyzed. The metrological characteristics of the State Primary Standard for the pressure unit in the field of absolute pressure after completion of the modernization are assessed.

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