BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in MBq.
Results given in absolute values.
BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq/MBq.
Results given in relative values.
BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in MBq.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
MBq |
MBq |
MBq |
||
| PTB | 0.41 | 0.80 | ||
| CMI-IIR | -1.2 | 1.4 | ||
| NPL | 0.0 | 1.0 | ||
| LNE-LNHB | 0.3 | 1.2 | ||
| ENEA-INMRI | -0.2 | 1.4 | ||
| NIST | -0.4 | 1.2 | ||
| POLATOM | 0.6 | 1.2 |
Results given in absolute values.
BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq/MBq.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kBq/MBq |
kBq/MBq |
kBq/MBq |
||
| PTB | 5.1 | 9.9 | ||
| CMI-IIR | -15 | 18 | ||
| NPL | 1 | 12 | ||
| LNE-LNHB | 3 | 14 | ||
| ENEA-INMRI | -2 | 17 | ||
| NIST | -6 | 15 | ||
| POLATOM | 7 | 14 |
Results given in relative values.
| Metrology area, Sub-field | Ionizing Radiation, Section II (Measurement of Radionuclides) |
| Description | Activity of radionuclide Cu-64 |
| Time of measurements | 2016 - |
| Status | Continuous, approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | SIR-TI 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) |
| Comments | SIR: Système International de Référence, International Reference System SIR-TI: SIR Transfer Instrument Most recent results published on 4 January 2022 The status for not yet completed comparisons is indicated in "Participants". First results published on 22 November 2017 |
| 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 |
| ANSTO |
Australian Nuclear Science and Technology Organisation, Australia, APMP |
| 2017 |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| 2022 |
Measurements complete |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| 2016 |
| NRC |
National Research Council, Canada, SIM |
| 2017 |
| POLATOM |
Radioisotope Centre Polatom, Poland, EURAMET |
| 2016 |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| 2021 |
Measurements complete |
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BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
The key comparison reference value xR for this radionuclide is estimated to be
xR = 80.99 MBq with a standard uncertainty uR = 30.34 MBq
(see the most recent KCRV update, Section 4 of Metrologia 2013 50 Tech. Suppl. 06021).
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence are both expressed in MBq, where xi is the equivalent activity for laboratory i.
The Degrees of equivalence are also given in relative terms by Di = (xI - xR) /xR and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq/MBq.
BIPM.RI(II)-K1.Cu-64 and BIPM.RI(II)-K4.Cu-64
MEASURAND Equivalent activity of Cu-64
xi result of measurement carried out in the SIR for the sample submitted by laboratory i, Labi
ui combined standard uncertainty of xi
BIPM.RI(II)-K1.Cu-64
-K1.Cu-64 LIM 2021.png)
BIPM.RI(II)-K4.Cu-64
-K4.Cu-64 LIM 2021.png)
