Final report on APMP comparison in humidity APMP.T−K8: Dew point temperature +30 °C to +95 °C

Abstract

Main textA key comparison in dew-point temperature in the range of +30 °C to +95 °C was carried out among the national standards held by NMIJ (pilot), MSL (coordinator), RCM-LIPI/SNSU-BSN, SCL, KRISS, NMIM, NMIA, NIMT, CMS/ITRI, and NMC, A*STAR. The purpose of the comparison was to establish the degree of equivalence between realizations of local scales of dew point temperature of humid gas among the participating national institutes. Although the comparison schedule was considerably delayed, no significant drift of the transfer standard was observed over the whole period of the comparison. The result of a chi-squared test demonstrated that the comparison was effective, and the results obtained in the comparison can be used as reliable supporting evidence for CMCs that each participant claims.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 CCT, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).