Supplementary comparison COOMET.M.P-S4 of gas absolute pressure standards up to 7 MPa, and gauge up to 2 MPa

• Published in: Metrologia 2020-01, Vol.57 (1A), p.7008
• Main Authors: Tskitishvili, Nino, Páviš, Richard, Chytil, Miroslav, Pražák, Dominik, Šmardová, Blanka
• Format: Article
• Language: English
• ISSN: 0026-1394; 1681-7575
• DOI: 10.1088/0026-1394/57/1A/07008

This report describes the results of a successful two-phase interlaboratory comparison between Georgian National Agency for Standards and Metrology (GeoSTM), Czech Metrology Institute (CMI) and Slovak Metrology Institute (SMU) denoted as COOMET.M.P-S4. The ranges of the absolute pressure from 0 MPa to 7 MPa and gauge pressure from 0 MPa to 2 MPa were chosen as the most suitable for a mutual comparison. A digital pressure gauge, DHI RPM4 served as a transfer standard in both phases. Firstly, bilateral interlaboratory comparison (BILC) between two participants, CMI (pilot and reference laboratory) and GeoSTM, started in March 2017 and finished in April 2017. Secondly, interlaboratory comparison (ILC) between three participants, CMI (pilot and reference laboratory), SMU (co-reference laboratory) and GeoSTM, started in October 2018 and finished in February 2019. SMU took part only in the absolute pressure comparison. Main text 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 kcdb.bipm.org/ . 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).