Strategies implemented at LNE to establish the traceability of environmental measurements

LNE is actively involved in the development of reference procedures in the domains of organic and inorganic chemistry and in gas analysis. Moreover, production of certified reference materials (CRMs), certification of calibration standards, and providing reference values for proficiency testing schemes (PTS) are fields well settled to ensure the traceability of measurements in environmental monitoring. The paper presents some representative examples of these activities recently realised in our laboratory. Presented at BERM-11, October 2007, Tsukuba, Japan.