BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq.
Results given in absolute values.
BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq.
Results given in relative values.
BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
kBq |
kBq |
kBq |
||
| NIST | 18 | 62 | ||
| JRC | -76 | 77 | ||
| BKFH | 8 | 62 | ||
| LNE-LNHB | 1 | 42 | ||
| NMIJ | -19 | 41 | ||
| BARC | 20 | 95 | ||
| CNEA | 67 | 95 | ||
| IFIN-HH | 99 | 111 | ||
| BEV | -33 | 142 | ||
| IRA | -92 | 106 | ||
| NMISA | -22 | 58 | ||
| POLATOM | -16 | 77 | ||
| NRC | 8 | 85 | ||
| LNMRI-IRD | -36 | 77 | ||
| PTB | -42 | 53 | ||
| INER | 55 | 42 | ||
| VNIIM | -29 | 56 |
Results given in absolute values.
BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
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 |
||
| NIST | 1.8 | 6.1 | ||
| JRC | -7.5 | 7.6 | ||
| BKFH | 0.8 | 6.1 | ||
| LNE-LNHB | 0.1 | 4.2 | ||
| NMIJ | -1.9 | 4.0 | ||
| BARC | 2 | 9 | ||
| CNEA | 7 | 9 | ||
| IFIN-HH | 10 | 11 | ||
| BEV | -3 | 14 | ||
| IRA | -9 | 10 | ||
| NMISA | -2.2 | 5.8 | ||
| POLATOM | -1.6 | 7.6 | ||
| NRC | 0.8 | 8.4 | ||
| LNMRI-IRD | -3.6 | 7.6 | ||
| PTB | -4.2 | 5.2 | ||
| INER | 5.4 | 4.1 | ||
| VNIIM | -2.9 | 5.5 |
Results given in relative values.
| Metrology area, Sub-field | Ionizing Radiation, Section II (Measurement of Radionuclides) |
| Description | Activity of radionuclide Cs-134 |
| Time of measurements | 2005 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Activity concentration in kBq/g |
| Transfer device | Radioactive solution |
| Comparison type | Key Comparison |
| Consultative Committee | CCRI (Consultative Committee for Ionizing Radiation) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| Comments | Results published on 25 September 2007 Display updated on 12 October 2022 |
| Pilot institute |
NMIJ AIST
National Metrology Institute of Japan Japan |
| Contact person | Y. Hino +81 298 61 5667 |
| Pilot laboratory | |
|---|---|
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| LNE-LNHB |
Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel, France, EURAMET |
| NRSL/INER |
Institute of Nuclear Energy Research, Chinese Taipei, APMP |
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
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BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
The key comparison reference value xR for this radionuclide is estimated to be
xR = 10 123 kBq with a standard uncertainty uR = 10 kBq
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence are both expressed in kBq, 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.Cs-134 and APMP.RI(II)-K2.Cs-134
MEASURAND SIR equivalent activity of Cs-134
xi measurement value submitted by laboratory i, Labi
ui combined standard uncertainty of xi
BIPM.RI(II)-K1.Cs-134
| Labi | xi | ui | Date of measurement | |
| kBq | kBq | |||
| NIST | 10 141 | 31 | 2002-06-21 | |
| JRC | 10 047 | 39 | 2004-01-20 | |
| BKFH | 10 131 | 31 | 2004-12-08 | |
| LNE-LNHB | 10 124 | 20 | 2005-04-13 | |
| NMIJ | 10 104 | 19 | 2005-04-20 | |
| BARC | 10 143 | 48 | 2005-07-20 | |
| CNEA | 10 190 | 48 | 2005-09-12 | |
| IFIN-HH | 10 222 | 56 | 2006-11-21 | |
| BEV | 10 090 | 70 | 2008-11-24 | |
| IRA | 10 031 | 52 | 2009-02-25 | |
| NMISA | 10 101 | 29 | 2010-08-05 | |
| POLATOM | 10 107 | 39 | 2014-01-09 | |
| NRC | 10 131 | 43 | 2014-03-18 | |
| LNMRI-IRD | 10 087 | 39 | 2015-12-15 | |
| PTB | 10 081 | 26 | 2016-08-17 |
APMP.RI(II)-K2.Cs-134
| Labi | xi | u(xi) | Date of measurement | |
| kBq | kBq | |||
| VNIIM | 10 094 | 26 | 2005 | |
| INER | 10 178 | 18 | 2005 | |
