Comparison
Comparison close
Results

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in MBq.

Tc-99m
Di / MBq
Participating institutes

Results given in absolute values.

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq/MBq.

Tc-99m
Di / (kBq/MBq)
Participating institutes

Results given in relative values.

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in MBq.

LABi Di Uneg,i Upos,i
MBq
MBq
MBq
BEV 2.6 2.7
MKEH 1.3 3.3
PTB -0.4 1.3
LNE-LNHB 0.1 1.6
NPL 0.2 1.7
NIST -0.3 1.5
KRISS 1.0 2.7
NMIJ -0.7 2.3
NIM 0.0 2.4
CNEA 7.1 4.3
LNMRI/IRD 1.6 3.3
IFIN-HH -2.2 2.9
VNIIM 3.5 4.9
ENEA-INMRI -2.3 1.6
NMISA 3.0 4.3
POLATOM 1.5 2.4
Participating institutes
BIPM.RI(II)-K1.Tc-99m
BIPM.RI(II)-K4.Tc-99m

Results given in absolute values.

 

 

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

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
BEV 17 18
MKEH 9 21
PTB -2.5 8.8
LNE-LNHB 1 10
NPL 1 11
NIST -2 10
KRISS 7 18
NMIJ -5 15
NIM 0 15
CNEA 46 28
LNMRI/IRD 11 22
IFIN-HH -14 19
VNIIM 23 32
ENEA-INMRI -15 10
NMISA 20 28
POLATOM 10 15
Participating institutes
BIPM.RI(II)-K1.Tc-99m
BIPM.RI(II)-K4.Tc-99m

Results given in relative values.

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.RI(II)-K4.Tc-99m
Metrology area, Sub-field Ionizing Radiation, Section II (Measurement of Radionuclides)
Description Activity of radionuclide Tc-99m
Time of measurements 2009 -
Status Continuous, approved for equivalence
Final Reports of the comparisons
References

BIPM.RI(II)-K4.Tc-99m Technical Protocol

Measurand SIR-TI equivalent activity in kBq
Transfer device SIR Transfer Instrument
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
SIR-TI: SIR Transfer Instrument

Most recent results published on 4 January 2022

The status for not yet completed comparisons is indicated in "Participants".
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

ANSTO

Australian Nuclear Science and Technology Organisation, Australia, APMP

BARC

Bhabha Atomic Research Centre, India, APMP

CNEA

National Commission of Atomic Energy, Argentina, SIM

ENEA-INMRI

Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Italy, EURAMET

IFIN-HH

"Horia Hulubei" National Institute of Research and Development for Physics and Nuclear Engineering, Romania, EURAMET

KRISS

Korea Research Institute of Standards and Science, Korea, Republic of, APMP

LNMRI/IRD

Laboratorio Nacional de Metrologia das Radiacoes Ionizantes, IRD, Brazil, SIM

NIM

National Institute of Metrology, China, APMP

NIST

National Institute of Standards and Technology, United States, SIM

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NRC

National Research Council, Canada, SIM

POLATOM

Radioisotope Centre Polatom, Poland, EURAMET

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

Measurements complete

VNIIM

D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

The key comparison reference value xR for this radionuclide is estimated to be

 

xR = 153 090 kBq with a standard uncertainty uR = 380 kBq

 

(see Section 7 of the BIPM.RI(I)-K4.Tc-99m Final Report).

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence are both expressed in MBq, where xi is the equivalent activity for laboratory i.

The Degrees of equivalence are also given in relative terms by Di = (xI - xR) /xand its expanded uncertainty Ui at a 95 % level of confidence, both expressed in kBq/MBq.

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Tc-99m and BIPM.RI(II)-K4.Tc-99m

 

MEASURAND           Equivalent activity of Tc-99m

 

xi   result of measurement carried out in the SIR for the sample submitted by laboratory i, Labi

ui   combined standard uncertainty of xi

 

BIPM.RI(II)-K1.Tc-99m

 

BIPM.RI(II)-K4.Tc-99m