EURAMET.M.P-S9 / EURAMET 1170, LOOP2. Comparison in the negative gauge pressure range -950 to 0 hPa

• Published in: Metrologia Vol. 54; no. 1A; p. 7004
• Main Authors: Otal, P, Boineau, F, Medina, N, Pražák, D, Wüthrich, C, Saxholm, S, Sabuga, W, Kocas, I, Durgut, Y
• Format: Journal Article
• Language: English
• Published: 01.01.2017
• ISSN: 0026-1394; 1681-7575
• DOI: 10.1088/0026-1394/54/1A/07004

This report gives the results of a comparison of pressure standards of seven European National Metrology institutes in the range of negative gauge pressure from -950 hPa to 0 hPa. This comparison was piloted by LNE and was carried out from January 2011 to March 2012. This work is a part of the EURAMET project 1170 and is registered as a supplementary comparison EURAMET.M.P-S9. The transfer standard used was a pressure monitor RPM4 A160Ks manufactured by DH Instruments Inc., with a resolution of 0.1 Pa. The reference values have been determined from the weighted mean of the deviations reported by the participants for each specified pressure. Seventy-three of the seventy-seven values (96%) reported by the laboratories agree with the reference values within the expanded uncertainties with a coverage factor k = 2. 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).