Equivalence of calibration certificates between EUROMET and NIST

The present status of a database based on comparison projects performed under EUROMET, as well as results for comparisons between NIST and EUROMET members, will be presented. The database is the result of a project to establish and validate a framework within which calibration certificates from NMIs in EU and NIST could be regarded as mutually equivalent. This equivalence would be accepted by regulatory bodies in the EU and USA for purposes of traceability requirements in regulation trade etc. based on comparisons between NMI's.