BIPM.RI(II)-K1.Zn-65 and CCRI(II)-K2.Zn-65
MEASURAND : Equivalent activity of 65Zn
Graph of equivalence
_zn-65_graph_feb15.gif)
Red squares: participants in BIPM.RI(II)-K1.Zn-65
Blue diamonds: participants in CCRI(II)-K2.Zn-65 (carried out in 2003)
The right hand axis shows approximate values only
BIPM.RI(II)-K1.Zn-65 and CCRI(II)-K2.Zn-65
MEASURAND : Equivalent activity of 65Zn
Degrees of equivalence relative to the BIPM.RI(II)-K1.Zn-65 key comparison reference value
_zn-65_does_feb15.gif)
Red: participants in BIPM.RI(II)-K1.Zn-65
Blue: participants in CCRI(II)-K2.Zn-65 (carried out in 2003)
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 Zn-65 |
| Time of measurements | 1977 - |
| 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 Results published on 28 September 2004 CCRI(II)-K2.Zn-65 results are linked to those of BIPM.RI(II)-K1.Zn-65 Equivalent activity of the radionuclide 65Zn
|
| 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 |
| 1977 |
| BARC |
Bhabha Atomic Research Centre, India, APMP |
| 2006 |
| LNE-LNHB |
Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel, France, EURAMET |
| 2018 |
| LNMRI/IRD |
Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, IRD, Brazil, SIM |
| 2022 |
Measurements in progress |
| 2015 |
report in progress draft B |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| 1999 | |
| 2001 |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| 1994 |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| 1979 |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| 1987 |
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" :
BIPM.RI(II)-K1.Zn-65 and CCRI(II)-K2.Zn-65
MEASURAND : Equivalent activity of 65Zn
|
Key comparison reference value: |
| 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. Ui = 2[(1 - 2wi)ui2 + uR2]1/2 when each laboratory has contributed to the calculation of xR. |
| When required, 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 may be used for the computation. |
|
The value xi is the equivalent activity for laboratory i participant in CCRI(II)-K2.Zn-65 whose ampoule was also measured in the SIR (see Final Report). |
| The degree of equivalence of laboratory i participant in CCRI(II)-K2.Zn-65 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. Ui = 2[(1 - 2wi)ui2 + uR2]1/2 when each laboratory has contributed to the calculation of xR. |
| When required, the degree of equivalence between two laboratories i and j, one participant in BIPM.RI(II)-K1.Zn-65 and one in CCRI(II)-K2.Zn-65, or both participant in CCRI(II)-K2.Zn-65, is given by a pair of terms: Dij =(Di - Dj) and Uij, its expanded uncertainty (k = 2), both expressed in MBq. The approximation Uij ~ 2(ui2 + uj2)1/2 may be used in the computation of the pair-wise degrees of equivalence. |
BIPM.RI(II)-K1.Zn-65 and CCRI(II)-K2.Zn-65
MEASURAND : Equivalent activity of 65Zn
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 | 29680 | 190 | 2001-11-27 |
| BARC | 29130 | 310 | 2006-11-29 |
MEASURAND : Equivalent activity of 65Zn
xi : result of measurement carried out at laboratory i converted to the equivalent activity through the SIR measurements (see Final Report)
ui : combined standard uncertainty of xi
| Lab i | xi / kBq |
ui / kBq |
Year of measurement |
| BEV | 29670 | 330 | 2003 |
| CMI | 29850 | 170 | 2003 |
| CNEA | 30030 | 130 | 2003 |
| ENEA-INMRI | 29660 | 120 | 2003 |
| IFIN-HH | 29550 | 150 | 2003 |
| IRA | 29720 | 140 | 2003 |
| IRMM | 29661 | 68 | 2003 |
| KRISS | 29780 | 130 | 2003 |
| LNE-LNHB | 29810 | 130 | 2003 |
| LNMRI/IRD | 30040 | 160 | 2003 |
| MKEH | 29590 | 120 | 2003 |
| NMIJ | 29700 | 150 | 2003 |
| NMISA | 29870 | 110 | 2003 |
| NPL | 29990 | 110 | 2003 |
| PTB | 29710 | 130 | 2003 |
| SMU | 29200 | 670 | 2003 |
| VNIIM | 29727 | 87 | 2003 |
