The World-wide proficiency test, IAEA-TEL-2012-03, on the determination of anthropogenic gamma-emitters in water in the presence of natural background, of radio-caesium in hay and of both natural and anthropogenic radionuclides in soil samples: Click Here
The IAEA-CU-2011-04 ALMERA Proficiency Test on the determination of natural and artificial radionuclides in water and soil, Status:Closed
The IAEA-CU-2010-03 World wide Proficiency Test on the determination of natural and artificial radionuclides in water and soil, Status:Closed
IAEA-CU-2006-09 CCRI (II) Supplementary Comparison on gamma-emitting radionuclides in water, soil and grass in cooperation with the Consultative Committee for Ionizing Radiation (CCRI) of the BIPM(Status: The comparison is concluded, the final report under revision)
IAEA-CU-2007-06 - CCRI(II) Supplementary comparison for the determination of technically enhanced naturally occurring radionuclides (TENORM) in phosphogypsum IAEA-434 (Status: on-going study)