EURAMET supplementary comparison between INRiM, UME and PTB in Brinell hardness scales (HBW1/30 - HBW2.5/187.5) - EURAMET.M.H-S2.a.

Main text This report describes a EURAMET supplementary comparison in Brinell hardness scales of three national metrology institutes Italy, Turkey and Germany; INRiM, UME PTB, respectively. The pilot laboratory is INRiM the where two sets reference blocks for Hardness HBW1/30 HBW2.5/187.5 were used. Each set consists levels used each scales. was realized as planned Technical Protocol with some delay. measurement results uncertainty assessments declared by PTB are consistency other. To reach main this paper, click on Final Report . Note that which appears Appendix B BIPM key database kcdb.bipm.org/ final has been peer-reviewed approved publication CCM, according to provisions CIPM Mutual Recognition Arrangement (CIPM MRA).