Key comparison COOMET.QM-K120 "Carbon dioxide in air at urban level (480–800) μmol/mol"

Abstract

Main textThis article presents the report on the COOMET key comparison COOMET.QM-K120, which is designed as linking to the appropriate CCQM comparison - CCQM-K120.b "Carbon dioxide in air at urban level (480–800) μmol/mol" carried out in 2016-2018.CCQM-K120.b is considered as a Track A comparison and tests core skills and competencies required in gravimetric preparation, analytical certification and purity analysis. Participants successful in CCQM-K120.b and the linked COOMET.QM-K120 comparison may use their results in the flexible scheme and underpin claims for all core mixtures in accordance with the GAWG strategy document.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 CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).