CCM Key Comparison in the Pressure Range 50 kPa to 1000 kPa (gas medium, gauge mode) - Phase A2: Pressure Measurements
J Jaeger, J C. Legras, G F. Molinar, James W. Schmidt
As a part of a wide CCM key comparison, this report gives the results of a comparison of pressure measurements in the range of gauge pressure 0,05 MPa to 1 MPa. The two transfer standards used were pressure balances equipped with large (10 cm2) effective area piston-cylinder assemblies. One of the scopes of the comparison was the observation of the behaviour of both piston and cylinder assemblies from two manufacturers and made of different materials.The results show an agreement of all the laboratory standards within the estimated expanded uncertainties, expressed with a coverage factor k = 2. Most of the difference values (47 over 54) are inside the standard uncertainties. These results demonstrate the coherancy of the standards of the involved laboratories in the range 100 kPa to 1000 kPa for gas pressure, gauge mode.
, Legras, J.
, Molinar, G.
and Schmidt, J.
CCM Key Comparison in the Pressure Range 50 kPa to 1000 kPa (gas medium, gauge mode) - Phase A2: Pressure Measurements, Metrologia
(Accessed December 1, 2021)