BIPM.RI(II)-K1.Zn-65 and CCRI(II)-K2.Zn-65
MEASURAND : Equivalent activity of 65Zn
Graph of equivalence
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
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 |