Supplementary comparison of national measurement standards of gauge pressure in the range from 1 MPa to 10 MPa

Abstract

Main textThis report gives the results of the supplementary comparison COOMET.M.P-S1 for measurements of the gauge pressure within the range from 1 MPa to 10 MPa. This comparison was piloted by NSC "Institute of Metrology" (Kharkiv, Ukraine). The principle of comparison is to determine the transfer standard effective area of the piston according to the method of cross-float equilibrium of transfer standard and national standards NMI-participants comparisons piston-cylinder assemblies. All values agree with the reference values within the expanded uncertainties taken with coverage factor k = 2.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).