The EURAMET.L-K8.2020 comparison of surface roughness standards was agreed at the EURAMET TC-L meeting in October 2019 to start in 2020. The technical protocol follows the layout of former surface roughness comparisons. 14 participants (11 from EURAMET, 1 from COOMET and 2 from APMP) will calibrate a set of four (4) ISO 5436-1 standards: one type A2, one type C3, one type D1 and one type D2. The standards are from different manufacturers and made from different materials.
The technical protocol can be downloaded here>>.