- Kazakhstan 2019 - in collaboration with DQCML
- Nepal 2018 - in collaboration with DQCML
- Malawi 2018 - in collaboration with DQCML
- Croatia 2015
- Vietnam 2013
- Nepal 2012
- Tunisia 2010
- Sri Lanka 2009
IMEP-17
IMEP-17 was an interlaboratory comparison study by the EU Institute for Reference Materials & Measurements (www.irmm.jrc.be) using DEKS control sera with target values certified by reference method laboratories around the world, and endorsed by C-AQ. The participants' report is at www.imep.ws/