Comparison
Comparison close
Results

BIPM.RI(II)-K1.Sc-47 and EUROMET.RI(II)-K2.Sc-47

MEASURAND : Equivalent activity of 47Sc

There is no graph of equivalence since no degrees of equivalence with respect to the key comparison reference value could be computed.

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Sc-47 and EUROMET.RI(II)-K2.Sc-47

MEASURAND : Equivalent activity of 47Sc

   
Lab iDiUi
 / MBq/ MBq
IRMM--
BNM-LNHB--
NPL--

In blue: participants in EUROMET.RI(II)-K2.Sc-47 only.

The full table of the pair-wise degrees of equivalence is available in Summary Results (summary of the results as a .PDF file).

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.RI(II)-K1.Sc-47
Metrology area, Sub-field Ionizing Radiation, Section II (Measurement of Radionuclides)
Description Activity of radionuclide Sc-47
Time of measurements 1983 -
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

EUROMET.RI(II)-K2.Sc-47 results are linked to those of BIPM.RI(II)-K1.Sc-47

BIPM.RI(II)-K1.Sc-47 and EUROMET.RI(II)-K2.Sc-47 results were published on 16 December 2003.

SIR equivalent activity of the radionuclide 47Sc

Pilot institute BIPM
Bureau International des Poids et Mesures
BIPM - International Organization
Contact person Carine Michotte

+33 (0) 1 45 07 70 85
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
BIPM

Bureau International des Poids et Mesures, BIPM - International Organization, N/A

IRMM

Institute for Reference Materials and Measurements, European Union, EURAMET

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Sc-47 and EUROMET.RI(II)-K2.Sc-47

MEASURAND : Equivalent activity of 47Sc

• Key comparison BIPM.RI(II)-K1.Sc-47

Key comparison reference value: there is currently no key comparison reference value for this radionuclide.

• Linking EUROMET.RI(II)-K2.Sc-47 to BIPM.RI(II)-K1.Sc-47

The value xi is the equivalent activity for laboratory i participant in EUROMET.RI(II)-K2.Sc-47 having been normalized to the value of the IRMM as the linking laboratory (see Final Report).

There are no degrees of equivalence with respect to the key comparison reference value.

The degree of equivalence between two laboratories i and j, one participant in BIPM.RI(II)-K1.Sc-47 and one in EUROMET.RI(II)-K2.Sc-47, or both participants in EUROMET.RI(II)-K2.Sc-47, is given by a pair of terms expressed in MBq:
Dij = xi - xj and Uij, its expanded uncertainty (k = 2), approximated by
Uij = 2(ui2 + uj2 - 2ful2)1/2 with l being the linking laboratory when each laboratory is from the EUROMET and f is the correlation coefficient.


Comparison
Comparison close
Results

BIPM.RI(II)-K1.Sc-47 and EUROMET.RI(II)-K2.Sc-47

MEASURAND : Equivalent activity of 47Sc

Key comparison BIPM.RI(II)-K1.Sc-47

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
 IRMM 164590 340 83-10-14

• Key comparison EUROMET.RI(II)-K2.Sc-47

xi : result of measurement carried out at laboratory i converted to the equivalent activity through the IRMM
ui : combined standard uncertainty of xi

 Lab i xi
/ kBq
ui
/ kBq
Measurement report date
 BNM-LNHB 164840 270 1983
 NPL

164980

340

1983