Worldwide Open Proficiency Test: Determination of ... - Nucleus - IAEA

[Bq/kg]
7.5
6.5
5.5
4.5
3.5
2.5
1.5
0.5
277 273 200 43 125 150 151 152 223 121 37 78 82 12 44 239 260 146 138 224 123 168 31 126 279 259 124 232 300 157 210 167 34 52 90 218 258 91 50 72 131 53 21 36 98 159 183 242 245 295 201 39 96 188
13
215 217
92 220 185 19 112 120 233 95 195 89 212 271 132 41 59 87 130 179 193 237 240 241 290 292 293 23 81 99 164 274 244 7255 238 272 18 211 26 249 624 29 68 70 139 140 221 246 250 276 71 62 128 214 22 118 101 165 173 111 141 289 58 169 186 46 80 158 194 208 243 20 55 161 162 268 175 57 219 16 40 166 122 109 254 60 294 30 86 187 133 65 134 191 17 64 213 153 181 35 342
56 192 251 227 45 144 267 97 11 170 199 252 296 47 63 265 61 298 54 184 172 288 174 9216 84 154 285 278 160 275 114 207 171 202 76 38 253 270 4107 163 178 256 93 94 263 297 100 284 182 236 32 73 269 106 190 51 261 177 77 88 209 143 197 115 264 75 514
230 235 136 286 225
Lab
code
Rep.
Value
Performance evaluation of Eu-152 measurement results
Rep.
Unc.
Spiked water sample 03
Target Value: 3.7 ± 0.08 [Bq/kg]
Unc.
[%]
N
28%
W
12%
A
60%
Eu-152 Water sample 03
Rel.
Bias
Laboratory code
A1 A2 True. P Prec.
1 3.42 0.44 12.87 -7.57 0.3 1.2 A 13.0 N W
3 3.9 0.6 15.38 5.41 0.2 1.6 A 15.5 N W
4 4.41 0.29 6.58 19.19 0.7 0.8 A 6.9 A A
5 10.06 0.8 7.95 171.89 6.4 2.1 N 8.2 A N
6 3.59 0.22 6.13 -2.97 0.1 0.6 A 6.5 A A
7 3.54 0.16 4.52 -4.32 0.2 0.5 A 5.0 A A
9 4.16 0.52 12.50 12.43 0.5 1.4 A 12.7 N N
11 4 0.3 7.50 8.11 0.3 0.8 A 7.8 A A
12 2.7 0.3 11.11 -27.03 1.0 0.8 N 11.3 N N
13 3.43 0.16 4.66 -7.30 0.3 0.5 A 5.1 A A
14 10.7 0.15 1.40 189.19 7.0 0.4 N 2.6 A N
16 3.74 0.08 2.14 1.08 0.0 0.3 A 3.0 A A
17 3.86 0.19 4.92 4.32 0.2 0.5 A 5.4 A A
18 3.56 0.14 3.93 -3.78 0.1 0.4 A 4.5 A A
Final
Score