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

[Bq/kg]
13
11
9
7
5
3
1
273 5264 263 206 151 152 25 15 205 43 150 144 239 223 14 246 143 142 219 123 299 83 167 161 85 126 93 190 77 292 293 100 267 13 244 249 71 42 187 252 1286 259 216 232 251 109 272 159 188 29
98 131 164 118 29 86 115 208 26 213 52 168 50 105 39 81 157 184 95 254 72 92 268 284 179 250 274 165 45 227 90 235 27 97 238 51 136 233 297 38 173 191 271 44 185 718
35
257 178 298 234 270 290 21 12 79 17 70 256 138 54 37 78 261 201 106 294 113 145 209 218 182 82
75 128 210 221 226 260 296 211 64 20 22 214 132 57 65 176 62 181 76 265 74 99 114 133 170 192 193 194 269 276 195 169 243 127 130 122 124 58 177 134 11 30 56 68 73 88 96 174 199 253 288 258 40 34 158 55 171 16 89 186 289 47 23 183 24 80 94 295 59 112 120 36 107 160 31 125 154 166 204 61 212 207 153 275 32 84 87 101 240 283 119 6111
41 91 172 237 241 215 255 162 217 279 285 163 19 139 236 33 363
46 53 146 200 60 278 224 242 245 110 220 300 175
Lab
code
Rep.
Value
Performance evaluation of Cs-137 measurement results
Rep.
Unc.
Spiked water sample 04
Target Value: 9.5 ± 0.19 [Bq/kg]
Unc.
[%]
W
6%
N
16%
A
78%
Cs-137 Water sample 04
Rel.
Bias
Laboratory code
A1 A2 True. P Prec.
1 8.91 0.75 8.42 -6.21 0.6 2.0 A 8.7 A A
2 9.4 0.33 3.51 -1.05 0.1 1.0 A 4.0 A A
3 9.6 1 10.42 1.05 0.1 2.6 A 10.6 N W
4 9.5 0.2 2.11 0.00 0.0 0.7 A 2.9 A A
5 3.24 0.22 6.79 -65.89 6.3 0.7 N 7.1 A N
6 10.18 0.43 4.22 7.16 0.7 1.2 A 4.7 A A
7 9.34 0.31 3.32 -1.68 0.2 0.9 A 3.9 A A
9 9.4 0.4 4.26 -1.05 0.1 1.1 A 4.7 A A
11 9.8 0.5 5.10 3.16 0.3 1.4 A 5.5 A A
12 10.3 0.4 3.88 8.42 0.8 1.1 A 4.4 A A
13 8.71 0.29 3.33 -8.32 0.8 0.9 A 3.9 A A
14 7.33 0.39 5.32 -22.84 2.2 1.1 N 5.7 A N
15 5.66 1.11 19.61 -40.42 3.8 2.9 N 19.7 N N
Final
Score