A.E. Aslanyan FSUE “VNIIFTRI”, Mendeleevo, Moscow region, Russiaandrey_aslanyan@vniiftri.ru Al’manac of Modern Metrology № 2 (30) 2022, pages 84–88 Abstract. The article describes the effect of the non-cylindrical gap between the piston and the cylinder in nominally cylindrical piston pairs on the metrological characteristics of piston-cylinder pressure gauges. Keywords: piston-cylinder gauge, high pressure, effective area. Full … Continue reading The effect of deviation from the cylindricity of the gap between the piston and the cylinder on the reproduction of pressure by a nominally cylindrical piston pair from the composition of a piston-cylinder pressure gauge