Directorate of Measures and Precious Metals took part in CCL-K11 key comparison of national primary standards of length which was held in period from June 27 to July 01, 2011, at Austrian NMI BEV (key comparison of optical frequency / wavelength standards).

The CCL-K11, being a key comparison, is designed to provide a technical basis for the review of CMC in the field of standard based optical frequency/wavelength calibrations, specifically those that are given under the entries 1.1.1 and 1.1.2 in the list of “Classifications of services in length”, e.g.

1.1.1 Stabilized laser of the “mise en pratique”

1.1.2 Other stabilized lasers