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MEASURAND : Mass fraction of Aluminium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in g/kg



*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

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MEASURAND : Mass fraction of Copper in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in g/kg



*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

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MEASURAND : Mass fraction of Iron in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in g/kg


*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

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MEASURAND : Mass fraction of Magnesium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in g/kg



*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

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MEASURAND : Mass fraction of Aluminium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

   
Lab iDiUi
 / (g/kg)/ (g/kg)
BAM-0.00910.0047
BNM-LNE-0.00080.0023
EMPA0.00110.0013
KRISS0.00040.0023
LGC-0.00110.0047
NIMC*0.00080.0011
NIST0.00050.0017
NPLI-0.00930.0118
NRCCRM0.00050.0074
OMH0.00610.0039
PTB0.00170.0018
SMU0.00050.0010
VNIIM-0.00060.0029

*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

The full matrix of equivalence is available in Summary Results (summary of the results as a .PDF file).

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MEASURAND : Mass fraction of Copper in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

   
Lab iDiUi
 / (g/kg)/ (g/kg)
BAM0.00190.0096
BNM-LNE-0.00040.0015
EMPA0.00040.0004
KRISS0.00160.0022
LGC-0.00140.0048
NIMC*0.00030.0005
NIST-0.00010.0024
NPLI-0.01430.0104
NRCCRM0.00060.0034
OMH0.00170.0086
PTB0.00080.0030
SMU0.00000.0007
VNIIM-0.00100.0026

*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

The full matrix of equivalence is available in Summary Results (summary of the results as a .PDF file).

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MEASURAND : Mass fraction of Iron in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

   
Lab iDiUi
 / (g/kg)/ (g/kg)
BAM-0.00750.0036
BNM-LNE0.00220.0013
EMPA0.00030.0005
KRISS-0.00010.0026
LGC0.00080.0084
NIMC*-0.00010.0007
NIST0.00040.0008
NPLI0.02580.0108
NRCCRM-0.00350.0038
PTB-0.00220.0028
SMU-0.00150.0008
VNIIM-0.00470.0036

*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

The full matrix of equivalence is available in Summary Results (summary of the results as a .PDF file).

print out

MEASURAND : Mass fraction of Magnesium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

   
Lab iDiUi
 / (g/kg)/ (g/kg)
BAM-0.00170.0134
BNM-LNE0.00280.0030
EMPA0.00040.0005
KRISS0.00460.0036
LGC0.00390.0022
NIMC*0.00070.0016
NIST0.00030.0014
NPLI0.18530.0144
NRCCRM0.00300.0062
OMH-0.00370.0037
PTB-0.00280.0028
SMU0.00080.0006
VNIIM0.00470.0024

*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

The full matrix of equivalence is available in Summary Results (summary of the results as a .PDF file).

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CCQM-K8
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Metrology area, Sub-field Chemistry and Biology, Inorganics
Description Monoelemental calibration solutions of Al, Cu, Fe and Mg
Time of measurements 1999 - 2000
Status Approved for equivalence
Final Reports of the comparisons
Metrologia, 2002, 39, Tech. Suppl., 08002
Measurand Mass fraction at a nominal value of 1 g/kg
Transfer device Monoelemental solutions gravimetrically prepared from Al, Cu, Fe and Mg
Comparison type Key Comparison
Consultative Committee CCQM (Consultative Committee for Amount of Substance)
Conducted by CCQM (Consultative Committee for Amount of Substance)
Comments

Results published on 20 February 2002

Calibration of monoelemental solutions of Aluminium, Copper, Iron and Magnesium at mass fraction of about 1 g/kg
Pilot institute EMPA (CH)
Swiss Federal Laboratories for Materials Testing and Research
Switzerland
Contact person H. Felber

+41 (0) 71 274 77 92
Additional
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
EMPA (CH)

Swiss Federal Laboratories for Materials Testing and Research, Switzerland, EURAMET

BAM

Bundesanstalt für Materialforschung und -prüfung, Germany, EURAMET

BNM-LNE

Bureau National de Métrologie - Laboratoire National d'Essais, France, EURAMET

KRISS

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

LGC

Laboratory of the Government Chemist, United Kingdom, EURAMET

NIST

National Institute of Standards and Technology, United States, SIM

NMIJ AIST

National Metrology Institute of Japan, Japan, APMP

NPLI

CSIR National Physical Laboratory of India, India, APMP

NRCCRM

National Research Centre for Certified Reference Materials, merged in NIM (National Institute of Metrology) starting 1st January 2006, China, APMP

OMH

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

PTB

Physikalisch-Technische Bundesanstalt, Germany, EURAMET

SMU

Slovensky Metrologicky Ustav, Slovakia, EURAMET

VNIIM

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

Comparison
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MEASURAND : Mass fraction of Aluminium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

The key comparison reference value is the gravimetric value xgrav of the Aluminium mass fraction. Its combined standard uncertainty is ugrav.

The degree of equivalence of each laboratory with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xgrav) and Ui, its expanded uncertainty (k = 2), both expressed in g/kg, Ui = 2(ui2 + ugrav2)1/2.

The degree of equivalence between two laboratories is given by a pair of terms:
Dij = Di -Dj = (xi - xgrav) - (xj - xgrav) = xi - xj, and Uij, its expanded uncertainty
(k = 2), both expressed in g/kg, Uij = 2(ui2 + uj2)1/2.
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MEASURAND : Mass fraction of Copper in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

The key comparison reference value is the gravimetric value xgrav of the Copper mass fraction. Its combined standard uncertainty is ugrav.

The degree of equivalence of each laboratory with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xgrav) and Ui, its expanded uncertainty (k = 2), both expressed in g/kg, Ui = 2(ui2 + ugrav2)1/2.

The degree of equivalence between two laboratories is given by a pair of terms:
Dij = Di -Dj = (xi - xgrav) - (xj - xgrav) = xi - xj, and Uij, its expanded uncertainty
(k = 2), both expressed in g/kg, Uij = 2(ui2 + uj2)1/2.
print out

MEASURAND : Mass fraction of Iron in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

The key comparison reference value is the gravimetric value xgrav of the Iron mass fraction. Its combined standard uncertainty is ugrav.

The degree of equivalence of each laboratory with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xgrav) and Ui, its expanded uncertainty (k = 2), both expressed in g/kg, Ui = 2(ui2 + ugrav2)1/2.

The degree of equivalence between two laboratories is given by a pair of terms:
Dij = Di -Dj = (xi - xgrav) - (xj - xgrav) = xi - xj, and Uij, its expanded uncertainty (k = 2), both expressed in g/kg, Uij = 2(ui2 + uj2)1/2.
print out

MEASURAND : Mass fraction of Magnesium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

The key comparison reference value is the gravimetric value xgrav of the Magnesium mass fraction. Its combined standard uncertainty is ugrav.

The degree of equivalence of each laboratory with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xgrav) and Ui, its expanded uncertainty (k = 2), both expressed in g/kg, Ui = 2(ui2 + ugrav2)1/2.

The degree of equivalence between two laboratories is given by a pair of terms:
Dij = Di -Dj = (xi - xgrav) - (xj - xgrav) = xi - xj, and Uij, its expanded uncertainty (k = 2), both expressed in g/kg, Uij = 2(ui2 + uj2)1/2.
Comparison
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Results
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MEASURAND : Mass fraction of Aluminium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xgrav : gravimetric value of the Aluminium mass fraction
ugrav : combined standard uncertainty of xgrav

 Lab i xi
/ (g/kg)		 ui
/ (g/kg)		 xgrav
/ (g/kg)		 ugrav
/ (g/kg)		 Date of reporting
           
 BAM 0.9878 0.0023 0.99685 0.00040 03/02/2000
 BNM-LNE 0.9961 0.0011 24/01/2000
 EMPA 0.99795 0.00052 11/02/2000
 KRISS 0.9973 0.0011 02/02/2000
 LGC 0.9957 0.0023 09/02/2000
 NIMC* 0.9976 0.00041 31/01/2000
 NIST 0.9974 0.00073 11/02/2000
 NPLI 0.9875 0.0059 14/03/2000
 NRCCRM 0.9974 0.0037 10/01/2000
 OMH 1.0030 0.0019 19/02/2000
 PTB 0.9985 0.0008 01/02/2000
 SMU 0.99731 0.00028 31/01/2000
 VNIIM 0.9963 0.0014 09/03/2000


*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

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MEASURAND : Mass fraction of Copper in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xgrav : gravimetric value of the Copper mass fraction
ugrav : combined standard uncertainty of xgrav

 Lab i xi
/ (g/kg)		 ui
/ (g/kg)		 xgrav
/ (g/kg)		 ugrav
/ (g/kg)		 Date of reporting
 BAM 0.9901 0.0048 0.98819 0.00003 03/02/2000
 BNM-LNE 0.9878 0.00077 24/01/2000
 EMPA 0.98860 0.00022 11/02/2000
 KRISS 0.9898 0.0011 02/02/2000
 LGC 0.9868 0.0024 09/02/2000
 NIMC* 0.9885 0.00025 31/01/2000
 NIST 0.9881 0.00122 11/02/2000
 NPLI 0.9739 0.00519 14/03/2000
 NRCCRM 0.9888 0.0017 10/01/2000
 OMH 0.9899 0.0043 19/02/2000
 PTB 0.9890 0.0015 01/02/2000
 SMU 0.98815 0.00034 31/01/2000
 VNIIM 0.9872 0.0013 09/03/2000


*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

print out

MEASURAND : Mass fraction of Iron in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xgrav : gravimetric value of the Iron mass fraction
ugrav : combined standard uncertainty of xgrav

 Lab i xi
/ (g/kg)		 ui
/ (g/kg)		 xgrav
/ (g/kg)		 ugrav
/ (g/kg)		 Date of reporting
 BAM 1.0122 0.0018 1.01966 0.00010 03/02/2000
 BNM-LNE 1.0219 0.00064 24/01/2000
 EMPA 1.01998 0.00025 11/02/2000
 KRISS 1.0196 0.0013 02/02/2000
 LGC 1.0205 0.0042 09/02/2000
 NIMC* 1.0196 0.00031 31/01/2000
 NIST 1.0201 0.00041 11/02/2000
 NPLI 1.0455 0.0054 14/03/2000
 NRCCRM 1.0162 0.0019 10/01/2000
 OMH - - -
 PTB 1.0175 0.0014 01/02/2000
 SMU 1.01817 0.00041 31/01/2000
 VNIIM 1.015 0.0018 09/03/2000


*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).

print out

MEASURAND : Mass fraction of Magnesium in monoelemental standard solution
NOMINAL VALUE : 1 g/kg

xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
xgrav : gravimetric value of the Magnesium mass fraction
ugrav : combined standard uncertainty of xgrav

 Lab i xi
/ (g/kg)		 ui
/ (g/kg)		 xgrav
/ (g/kg)		 ugrav
/ (g/kg)		 Date of reporting
 BAM 1.0026 0.0067 1.00428 0.00009 03/02/2000
 BNM-LNE 1.0071 0.0015 24/01/2000
 EMPA 1.00466 0.00025 11/02/2000
 KRISS 1.0089 0.0018 02/02/2000
 LGC 1.0082 0.0011 09/02/2000
 NIMC* 1.0050 0.00080 31/01/2000
 NIST 1.0046 0.00069 11/02/2000
 NPLI 1.1896 0.0072 14/03/2000
 NRCCRM 1.0073 0.0031 10/01/2000
 OMH 1.0006 0.00187 19/02/2000
 PTB 1.0015 0.0014 01/02/2000
 SMU 1.00509 0.00031 31/01/2000
 VNIIM 1.009 0.0012 09/03/2000


*At the time of the comparison NMIJ (National Metrology Institute of Japan) was designated as NIMC (National Institute of Material and Chemical research).