MEASURAND : SIR equivalent activity of 153Sm
Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in MBq
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MEASURAND : SIR equivalent activity of 153Sm
| Lab i | Di | Ui |
| / MBq | / MBq | |
| NIST | 3.1 | 7.4 |
| PTB | -2.0 | 5.4 |
| NPL | 1.0 | 5.2 |
| BNM-LNHB | -2.0 | 3.6 |
| ANSTO | -8.2 | 16.5 |
Results are presented under A4 printable format in Summary Results (.PDF file).
| Metrology area, Sub-field | Ionizing Radiation, Section II (Measurement of Radionuclides) |
| Description | Activity of radionuclide Sm-153 |
| Time of measurements | 2023 - |
| Status | Protocol complete |
| References | |
| Measurand | SIRTI equivalent activity in kBq |
| Transfer device | SIR Transfer Instrument |
| Comparison type | Key Comparison |
| Consultative Committee | CCRI (Consultative Committee for Ionizing Radiation) |
| Conducted by | BIPM (Bureau International des Poids et Mesures) |
| Pilot institute |
BIPM
Bureau International des Poids et Mesures BIPM - International Organization |
| Contact person | Carine Michotte +33 (0) 1 45 07 70 85 |
This page proposes print-out on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
Please, select items to be printed out, then click on "OK" :
MEASURAND : SIR equivalent activity of 153Sm
| Key comparison reference value: The SIR reference value for this radionuclide is xR = 573.7 MBq, with a standard uncertainty uR = 1.2 MBq, see section 4.1 of Metrologia, 2004, 41, Tech. Suppl., 06012. |
| The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (k = 2), both expressed in MBq. With n the number of laboratories,  when each laboratory has contributed to the computation of xR. |
| The degree of equivalence between two laboratories is given by a pair of terms: Dij = Di - Dj = (xi - xj) and Uij, its expanded uncertainty (k = 2), both expressed in MBq. The approximation Uij ~ 2(ui2 + uj2)1/2 is used for the computation of the pair-wise degrees of equivalence. |
MEASURAND : SIR equivalent activity of 153Sm
xi : result of measurement carried out in the SIR for the sample submitted by laboratory i
ui : combined standard uncertainty of xi
| Lab i | xi / kBq |
ui / kBq |
Date of measurement |
| NIST | 576800 | 4700 | 98-06-23 |
| PTB | 571700 | 3100 | 99-04-27 |
| NPL |
574700 |
2900 | 99-07-09 |
| BNM-LNHB | 571700 | 1100 | 03-09-11 |
| ANSTO |
565500 |
8100 |
04-09-22 |
