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 Zn-65 solution |
| Time of measurements | 2021 - 2022 |
| Status | Measurements in progress |
| References | |
| Measurand | Activity 0.5 MBq |
| Transfer device | Sample of Zn-65 |
| Comparison type | Key Comparison |
| Consultative Committee | CCRI (Consultative Committee for Ionizing Radiation) |
| Conducted by | SIM (Inter-American Metrology System) |
| Pilot institute |
LNMRI
Laboratorio Nacional de Metrologia das Radiaçoes Ionizantes, IRD Brazil |
| Contact person | KARLA PATRÃO +5521993858835 |
| BARC |
Bhabha Atomic Research Centre, India, APMP |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| CIEMAT |
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Spain, EURAMET |
| CNEA |
National Commission of Atomic Energy, Argentina, SIM |
| FTMC |
Center for Physical Sciences and Technology, Lithuania, EURAMET |
| ININ |
Instituto Nacional de Investigaciones Nucleares, Mexico, SIM |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| NRC |
National Research Council, Canada, SIM |
| POLATOM |
Radioisotope Centre Polatom, Poland, EURAMET |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| VINS |
Vinca Institute of Nuclear Sciences, Serbia, EURAMET |
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 |
