| 1. IAEA AQCS Intercomparison Run IAEA-326/327, 1994-1996 | |
| 2. Nordic Project NKS/EKO-1 Sediment Intercomparison, 1995-1996 | |
| 3. Nordic Project NKS/EKO-3.2.5 Software Intercomparison, 1997 | |
| 4. IAEA AQCS Proficiency Test for Determination of 239Pu, 241Pu and 241Am in a Mineral Matrix, 1999-2000 | |
| 5. Nordic Project NKS/BOK-1.1, 1999-… | |
| 6. Baltic Intercomparison Exercise on 137Cs analysis, 2000-… | |
| 7. Nordic Project NKS/BOK-1.1 Exercise on fresh fallout analysis, 4 October 2000, 2000-… |