BIPM.RI(II)-K1.Ga-67
MEASURAND: Equivalent activity of 67Ga
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.Ga-67
MEASURAND: Equivalent activity of 67Ga
Degrees of equivalence represented by Di = (xI - xR)/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.Ga-67
MEASURAND: Equivalent activity of 67Ga
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 |
||
| LNE-LNHB | -0.96 | 0.91 | ||
| PTB | 0.7 | 1.2 | ||
| NIST | 0.3 | 1.1 | ||
| CMI | 0.3 | 2.0 |
Results given in absolute values.
BIPM.RI(II)-K1.Ga-67
MEASURAND: Equivalent activity of 67Ga
Degrees of equivalence represented by Di = (xI - xR)/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 |
||
| LNE-LNHB | -8.3 | 8.0 | ||
| PTB | 6 | 10 | ||
| NIST | 3 | 10 | ||
| CMI | 3 | 18 |
Results given in relative values.
| Metrology area, Sub-field | Ionizing Radiation, Section II (Measurement of Radionuclides) |
| Description | Activity of radionuclide Ga-67 |
| Time of measurements | 1978 - |
| 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 First results published 28 April 2003. Most recent results published on 11 September 2024. The status for not yet completed comparisons is indicated in "Participants". |
| 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 |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| 1995 |
| CIEMAT |
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Spain, EURAMET |
| 2003 |
| CMI |
Czech Metrology Institute, Czechia, EURAMET |
| 1981 | |
| 2023 |
| DTU |
Technical University of Denmark, Denmark, EURAMET |
| 1983 |
| LNE-LNHB |
Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel, France, EURAMET |
| 1981 | |
| 2005 |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| 1998 | |
| 1999 | |
| 2010 |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| 2002 |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
| 1986 |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| 1982 |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| 2010 |
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BIPM.RI(II)-K1.Ga-67
MEASURAND: Equivalent activity of 67Ga
Key comparison reference value: the SIR reference value xR for this radionuclide is 114 780 kBq, with a standard uncertainty uR equal to 420 kBq
(see section 4.1 of the BIPM.RI(II)-K1.Ga-67 Final report). The value xi is taken as the equivalent activity for a laboratory i.
The degree of equivalence of each laboratory i 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, and
Ui = 2((1 - 2wi)ui2 + u2R)1/2, where wi is the weight of laboratory i contributing to the calculation of xR.
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.Ga-67
MEASURAND: Equivalent activity of 67Ga
xi result of measurement carried out in the SIR for the sample submitted by laboratory i, Labi
ui combined standard uncertainty of xi
| Labi | xi | ui | Date of measurement | |
| kBq | kBq | |||
| LNE-LNHB | 113 820 | 320 | 2005-10-20 | |
| PTB | 115 510 | 600 | 2010-03-11 | |
| NIST | 115 110 | 530 | 2010-05-04 | |
| CMI | 115 100 | 1 100 | 2023-09-18 |
