Both milk powder IAEA-153 and whey powder IAEA-155 were donated to the IAEA by a milk processing facility in the former USSR. These materials were γ-sterilized to ensure long-term stability of the material by inhibiting microbial action.
| Analyte | Value | Unit | 95% C.I. | N | R/I/C |
| Al | 52.9 | mg/kg | 38.0 - 67.8 | 21 | I |
| As | 0.049 | mg/kg | 0.016 - 0.083 | 6 | I |
| B | 5.1 | mg/kg | 4.3 - 6.0 | 6 | I |
| Br | 39.1 | mg/kg | 36.1 - 42.0 | 18 | R |
| Ca | 42100# | mg/kg | 40400 - 43900 | 17 | I |
| Cd | 0.016 | mg/kg | 0.012 - 0.020 | 18 | R |
| Ci | 69200 | mg/kg | 65900 - 72400 | 10 | R |
| Co | 0.043 | mg/kg | 0.029 - 0.056 | 16 | R |
| Cr | 0.59 | mg/kg | 0.51 - 0.66 | 28 | R |
| Cs | 0.086 | mg/kg | 0.071 - 0.102 | 9 | R |
| Cu | 0.57 | mg/kg | 0.46 - 0.68 | 28 | I |
| Fe | 62 | v | 50 - 74 | 35 | I |
| Hg | 0.0026 | mg/kg | 0.0015 - 0.0038 | 9 | R |
| K | 41700 | mg/kg | 35400 - 48100 | 25 | I |
| Mg | 3190 | mg/kg | 3060 - 3310 | 16 | R |
| Mn | 9.3 | mg/kg | 8.78 - 9.82 | 19 | R |
| Na | 15800 | mg/kg | 15200 - 16400 | 21 | R |
| Ni | 0.54 | mg/kg | 0.44 - 0.64 | 15 | R |
| P | 16200 | mg/kg | 15500 - 17000 | 10 | R |
| Pb | 0.104 | mg/kg | 0.071 - 0.136 | 15 | R |
| Rb | 39.2 | mg/kg | 36.4 - 42.0 | 18 | R |
| S | 3000 | mg/kg | 1600 - 4400 | 6 | I |
| Sc | 0.028 | mg/kg | 0.021 - 0.034 | 10 | R |
| Se | 0.064 | mg/kg | 0.051 - 0.077 | 9 | R |
| Sr | 10.5 | mg/kg | 6.6 - 14.5 | 6 | I |
| Zn | 34.3 | mg/kg | 32.8 - 35.7 | 54 | R |
(Value) Concentration calculated as a mean of the accepted laboratory means
(N) Number of accepted laboratory means which are used to calculate the recommended or information values and their respective confidence intervals
(R/I/C) Classification assigned to the property value for analyte (Recommended/Information/Certified)
(#) The information value for Ca was calculated from a set of selected results (for details see report)
The values listed above were established on the basis of statistically valid results submitted by laboratories which had participated in one or more international intercomparison exercises organized by the Chemistry Unit, IAEA Laboratories, Seibersdorf. The details concerning the criteria for qualification as a recommended or information value can be found in the respective report (attached).
