Key comparison of Vickers hardness scales

Project Description

The comparison is intended to be organised as two bilateral comparisons. Each participant shall first assure that the national standards to be used in the comparison at least be in accordance with ISO 6507-1:2018 and ISO 6507-3:2018 standards. This comparison will to be linked to the CCM key comparisons CCM.H-K1.b.c and the hardness scales and levels are selected accordingly

1) EURAMET.M.H-K1.b for HV1 (three hardess levels)
2) EURAMET.M.H-K1.c for HV30 (three hardness levels)

The Technical Protocol can be downloaded here>>

Final Report 2021-04-23

The comparison has been completed and results are available in the KCDB.