COOMET.PR-K3.a comparison of luminous intensity

This report gives the results of the COOMET.PR-K3 comparison of luminous intensity. Five laboratories took part in the comparison. COOMET.PR-K3 was piloted by Belarusian State Institute of Metrology (BelGIM). The linkage to KCRV was provided through the participation of the All-Russian Research Institute for Optical and Physical measurement (VNIIOFI) and Slovak Institute of Metrology (SMU). Other participants were National Scientific Center "Institute of Metrology" (NSC IM), Ukraine and Kazakhstan Institute of Metrology (KazInMetr). BelGIM, NSC IM and KazInMetr were non-linked laboratories. A set of three incandescent lamps was used as traveling comparison artefact. Degrees of equivalence of all three non-linked laboratories were within their expanded uncertainties. 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 CCPR, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).