Comparison
Comparison close
Results

BIPM.RI(II)-K1.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

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

Ba-133
Di / MBq
Participating institutes

Results given in absolute values.

 

 

BIPM.RI(II)-K1.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

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

Ba-133
Di /(kBq/MBq)
Participating institutes

Results given in relative values.

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

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
IFIN-HH -0.31 0.29
NMIJ 0.13 0.22
IRA 0.02 0.23
LNE-LNHB -0.02 0.38
BEV 0.16 0.61
NRC -0.59 0.52
TENMAK-NÜKEN 0.0 1.4
NMISA 0.22 0.32
NIST -0.02 0.52
ANSTO -0.01 0.38
BARC -1.5 1.2
INER 0.12 0.30
KRISS 0.20 0.32
NIM 0.35 0.59
OAP -0.1 1.5
PTKMR 1.3 1.4
Participating institutes
BIPM.RI(II)-K1.Ba-133
APMP.RI(II)-K2.Ba-133

Results given in absolute values.

 

 

BIPM.RI(II)-K1.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

Degrees of equivalence represented by Di = (xI - xR) / 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
IFIN-HH -7.0 6.5
NMIJ 3.0 5.0
IRA 0.5 5.3
LNE-LNHB -0.4 8.6
BEV 4 14
NRC -13 12
TENMAK-NÜKEN 0 32
NMISA 5.0 7.4
NIST 0 12
ANSTO -0.2 8.6
BARC -35 27
INER 2.8 6.9
KRISS 4.6 7.3
NIM 8 13
OAP -3 35
PTKMR 30 33
Participating institutes
BIPM.RI(II)-K1.Ba-133
APMP.RI(II)-K2.Ba-133

Results given in relative values.

 

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.RI(II)-K1.Ba-133
Metrology area, Sub-field Ionizing Radiation, Section II (Measurement of Radionuclides)
Description Activity of radionuclide Ba-133
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
Firts results published on 4 April 2003
Most recent update made on 19 October 2022
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

BARC

Bhabha Atomic Research Centre, India, APMP

Planned

BEV

Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

CMI-IIR

Czech Metrology Institute - Inspectorate for Ionizing Radiation, Czechia, EURAMET

CNEA

National Commission of Atomic Energy, Argentina, SIM

IFIN-HH

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

IRA

Institut Universitaire de Radiophysique Appliquée, Switzerland, EURAMET

KRISS

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

LNE-LNHB

Commissariat à l'énergie atomique / Laboratoire National Henri Becquerel, France, EURAMET

LNMRI/IRD

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

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

NPL

National Physical Laboratory, United Kingdom, EURAMET

NRC

National Research Council, Canada, SIM

OMH

Országos Mérésügyi Hivatal; Subsequently MKEH, now BKFH, Hungary, EURAMET

P3KRBiN

Pusat Penelitian & Pengembangan Keselamatan Radiasi & Biomedika Nuklir, Indonesia, APMP

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

Measurements in progress

TENMAK-NUKEN

Nuclear Energy Research Institute, Türkiye, EURAMET

VNIIM

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

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

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

 

xR = 43 899 kBq      with a standard uncertainty     uR = 59 kBq

 

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.Ba-133 and APMP.RI(II)-K2.Ba-133

MEASURAND   SIR equivalent activity of Ba-133

 

xi  measurement value submitted by laboratory iLabi

ui   combined standard uncertainty of xi

 

BIPM.RI(II)-K1.Ba-133

         
  Labi xi u(xi) Date of measurement
  kBq kBq
  IFIN-HH 43590 140 2005-12-08
  NMIJ 44030 100 2006-07-07
  IRA 43920 100 2009-04-15
  LNE-LNHB 43880 190 2012-03-07
  BEV 44060 300 2012-06-12
  NRC 43310 260 2016-01-28
  TENMAK-NÜKEN 43920 700 2018-01-10
  NMISA 44120 160 2019-03-12
  NIST 43880 260 2019-04-15
         

 

 

APMP.RI(II)-K2.Ba-133

         
  Labi xi u(xi) Date of measurement
  kBq kBq
  ANSTO 43890 180 2006
  BARC 42370 590 2006
  INER 44020 140 2006
  KRISS 44100 150 2006
  NIM 44250 290 2006
  OAP 43750 770 2006
  PTKMR 45220 720 2006