Comparison
Comparison close
Results

BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

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

Cs-134
Di / kBq
Participating institutes

Results given in absolute values.

 

 

 

BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

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

Cs-134
Di / (kBq/MBq)
Participating institutes

Results given in relative values.

 

 

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

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

LABi Di Uneg,i Upos,i
kBq
kBq
kBq
KRISS 98 45
CIEMAT -180 45
NIST 25 61
IRMM -69 75
PTB -36 47
MKEH 15 61
LNE-LNHB 8 42
NMIJ -12 41
BARC 27 91
CNEA 74 91
IFIN-HH 106 114
BEV -26 142
IRA -85 106
NMISA -15 62
VNIIM -22 58
INER 62 44
Participating institutes
BIPM.RI(II)-K1.Cs-134
APMP.RI(II)-K2.Cs-134

Results given in absolute values.

 

 

 

BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

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
KRISS 10 4
CIEMAT -18 4
NIST 2 6
IRMM -7 7
PTB -4 5
MKEH 2 6
LNE-LNHB 1 4
NMIJ -1 4
BARC 3 9
CNEA 7 9
IFIN-HH 11 11
BEV -3 14
IRA -8 10
NMISA -1 6
VNIIM -2 6
INER 6 4
Participating institutes
BIPM.RI(II)-K1.Cs-134
APMP.RI(II)-K2.Cs-134

Results given in relative values.

 

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.RI(II)-K1.Cs-134
Metrology area, Sub-field Ionizing Radiation, Section II (Measurement of Radionuclides)
Description Activity of radionuclide Cs-134
Time of measurements 1975 -
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
First results published on 08 July 2003
Most recent update: 17 May 2013
/ Display updated on 12 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

BEV

Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET

CIEMAT

Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas, Spain, 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

IRMM

Institute for Reference Materials and Measurements, European Union, 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

POLATOM

Radioisotope Centre Polatom, Poland, EURAMET

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

Comparison
Comparison close
Results

BIPM.RI(II)-K1.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

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

 

xR = 10 116 kBq with a standard uncertainty uR = 13 kBq

 

Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence are both expressed in kBq, 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.Cs-134 and APMP.RI(II)-K2.Cs-134

MEASURAND   SIR equivalent activity of Cs-134

 

xi  measurement value submitted by laboratory iLabi

ui   combined standard uncertainty of xi

 

BIPM.RI(II)-K1.Cs-134

         
  Labi xi u(xi) Date of measurement
  kBq kBq
  KRISS 10 214 20 1996-02-22
  CIEMAT 9 936 20 2001-04-27
  NIST 10 141 31 2002-06-21
  IRMM 10 047 39 2004-01-20
  PTB 10 080 23 2004-07-05
  MKEH 10 131 31 2004-12-08
  LNE-LNHB 10 124 20 2005-04-13
  NMIJ 10 104 19 2005-04-20
  BARC 10 143 48 2005-07-20
  CNEA 10 190 48 2005-09-12
  IFIN-HH 10 222 56 2006-11-21
  BEV 10 090 70 2008-11-24
  IRA 10 031 52 2009-02-25
  NMISA 10 101 29 2010-08-05
         

 

 

APMP.RI(II)-K2.Cs-134

         
  Labi xi u(xi) Date of measurement
  kBq kBq
  VNIIM 10 094 26 2005
  INER 10 178 18 2005