Time & Frequency Group: Geoff Barwood (Coordinator), Anne Curtis (WP1 Leader) Gas & Particle Metrology Group: Paul Brewer Martin Vicar – CMI Zhechao Qu – PTB Stefan Persijn – VSL Timo Rajamaki – VTT Tuomas Hieta – Gasera Jouni Nieminen – Optoseven Guido Sassi – Polito
