BIPM.RI(II)-K1.Mn-54
MEASURAND Equivalent activity of 54Mn
Degrees of equivalence represented by Di = (xI - xR) and Ui, its expanded uncertainty (k = 2) both expressed in MBq.
BIPM.RI(II)-K1.Mn-54
MEASURAND Equivalent activity of 54Mn
Degrees of equivalence represented by Di = (xI - xR) and Ui, its expanded uncertainty (k = 2) both expressed in MBq.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
MBq |
MBq |
MBq |
||
| NPL | 0.02 | 0.11 | ||
| BKFH | -0.11 | 0.13 | ||
| LNE-LNHB | -0.05 | 0.10 | ||
| PTB | 0.00 | 0.12 | ||
| POLATOM | 0.27 | 0.29 |
| Metrology area, Sub-field | Ionizing Radiation, Section II (Measurement of Radionuclides) |
| Description | Activity of radionuclide Mn-54 |
| Time of measurements | 1975 - |
| Status | Continuous, approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | SIR equivalent activity |
| Transfer device | Radioactive solution |
| Comparison type | Key Comparison |
| Consultative Committee | CCRI (Consultative Committee for Ionizing Radiation) |
| Conducted by | BIPM (Bureau International des Poids et Mesures) |
| Comments | SIR: Système International de Référence, International Reference System |
| Pilot institute |
BIPM
Bureau International des Poids et Mesures BIPM - International Organization |
| Contact person | Carine Michotte +33 (0) 1 45 07 70 85 |
| Pilot laboratory | |
|---|---|
| BIPM |
Bureau International des Poids et Mesures, BIPM - International Organization, N/A |
| 1976 | |
| ANSTO |
Australian Nuclear Science and Technology Organisation, Australia, APMP |
| 1977 |
| BARC |
Bhabha Atomic Research Centre, India, APMP |
| 2002 |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| 2001 |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| 1998 |
Magyar Kereskedelmi Engedélyezési Hivatal (MKEH), now BFKH |
| 2006 |
Magyar Kereskedelmi Engedélyezési Hivatal (MKEH), now BFKH |
| CMI |
Czech Metrology Institute, Czechia, EURAMET |
| 1979 |
Czech Metrologiacl institute, Inspectorate for Ionizing radiation (CMI/IIR), now CMI |
| IAEA |
International Atomic Energy Agency, IAEA - International Organization, SIM |
| 1979 |
| IRA |
Institut Universitaire de Radiophysique Appliquée, Switzerland, EURAMET |
| 1989 |
| LNE-LNHB |
Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel, France, EURAMET |
| 1992 | |
| 1999 | |
| 2006 | |
| 2018 |
| LNMRI/IRD |
Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, IRD, Brazil, SIM |
| 2000 |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| 1979 | |
| 2002 |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| 1993 |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| 1976 | |
| 2006 | |
| 2024 |
Measurements complete |
| POLATOM |
Radioisotope Centre Polatom, Poland, EURAMET |
| 2023 |
Report in progress, draft A |
| 2024 |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| 1979 | |
| 2017 |
- |
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BIPM.RI(II)-K1.Mn-54
MEASURAND Equivalent activity of 54Mn
Key comparison reference value: the SIR reference value for this radionuclide is xR = 19 246 kBq with a standard uncertainty, uR = 19 kBq (see Section 4.1 of the Final Report).
The value xi is the equivalent activity for laboratory i.
The degree of equivalence of each laboratory with respect to the key comparison reference value is given by a pair of terms:
Di = (xi - xR) and Ui, its expanded uncertainty (k = 2), both expressed in MBq, and
Ui = 2((1 - 2wi)ui2 + uR2)1/2 , where wi is the weight of laboratory i contributing to the calculation of xR.
BIPM.RI(II)-K1.Mn-54
MEASURAND Equivalent activity of 54Mn
xi result of measurement carried out in the SIR for the sample submittedby laboratory i, Labi
ui combined standard uncertainty of xi
| Labi | xi | ui | Date of measurement | |
| / kBq | / kBq | |||
| NPL | 19 268 | 55 | 2006-03-09 | |
| BKFH | 19 139 | 66 | 2006-06-22 | |
| LNE-LNHB | 19 199 | 54 | 2006-07-19 | |
| PTB | 19 250 | 61 | 2017-09-13 | |
| POLATOM | 19 520 | 140 | 2024-04-19 |
