The dimensional laboratory of Hellenic Institute of Metrology participated successfully in the following international intercomparison projects:
Euromet Project 601, “Supplementary Comparison on Calibration of Gauge Blocks by Mechanical Comparison”, 2003.
EUROMET.L-K1.1, “Calibration of gauge blocks by interferometry”, 2004.
BIPM.L-K11, “Key comparison on primary wavelength standards”, 2005.
EUROMET.L-K4 (Project 812) “Calibration of diameter Standards”, 2009
EURAMET.L-K7 (Project 882) “Calibration of line scales”, 2009
EURAMET.L-K3a.2011 “Angle comparison using an autocollimator”, ongoing.