MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      80 nmol/mol

 

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

80 nmol/mol
Di
Participating institutes

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      420 nmol/mol

 

Degrees of equivalence Di and expanded uncertainty Ui (k = 2) expressed in nmol/mol.

420 nmol/mol
Di
Participating institutes

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      80 nmol/mol

Degrees of equivalence Di and expanded uncertainty Ui (k = 2)

LABi Di Uneg,i Upos,i
nmol/mol
nmol/mol
nmol/mol
INRIM (Sep-07) -0.37 0.83
LNE (May-12) -0.30 1.04
EMPA (Jun-12) 0.35 1.19
VNIIM (1) (Jun-14) 0.08 0.85
VNIIM (2) (Jun-14) 0.04 0.85
NIM (Jul-14) -0.05 0.99
DMDM (Jul-15) -0.05 1.15
CMS (Jun-16) -0.03 1.23
DHMZ (Aug-16) 0.03 1.21
VSL (Sep-16) 0.09 1.08
NPL (Apr-17) 0.18 1.09
NMISA (Jun-17) -0.02 1.17
INECC (Sep-17) -0.13 1.09
CHMI (Sep-17) 0.12 1.03
FMI (Nov-17) -0.01 1.03
NPLI (Dec-17) 0.12 1.03
NILU (Jan-18) 0.05 1.06
NMC, A*STAR (Jul-18) 0.18 1.19
ISCIII (1) (Feb-19) -0.11 2.78
ISCIII (2) (Feb-19) 0.12 2.78
KRISS (Apr-19) 0.23 0.99
NIST (1) (Jun-19) 0.24 1.19
NIST (2) (Jun-19) 0.24 1.20
JRC (Jul-19) -0.20 1.14
EAA (Sep-19) 0.24 1.35
UBA (Oct-19) 0.11 1.03
METAS (Jul-20) -0.19 1.00
Participating institutes
BIPM.QM-K1 80 nmol/mol

Two results are given for NIST, ISCIII and VNIIM as expected from BIPM.QM-K1 Protocol B

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      420 nmol/mol

Degrees of equivalence Di and expanded uncertainty Ui (k = 2)

LABi Di Uneg,i Upos,i
nmol/mol
nmol/mol
nmol/mol
INRIM (Sep-07) -1.72 2.76
LNE (May-12) 0.39 3.63
EMPA (Jun-12) 1.60 4.26
VNIIM (1) (Jun-14) 0.33 3.57
VNIIM (2) (Jun-14) 0.58 3.56
NIM (Jul-14) -0.65 3.18
DMDM (Jul-15) 0.26 4.37
CMS (Jun-16) 0.19 4.44
DHMZ (Aug-16) 0.61 4.43
VSL (Sep-16) 0.08 3.25
NPL (Apr-17) 1.15 3.84
NMISA (Jun-17) 0.58 4.40
INECC (Sep-17) 0.40 3.85
CHMI (Sep-17) 1.50 3.53
FMI (Nov-17) 0.11 3.53
NPLI (Dec-17) 0.04 3.53
NILU (Jan-18) -0.13 3.58
NMC, A*STAR (Jul-18) 0.82 4.47
ISCIII (1) (Feb-19) -0.80 4.57
ISCIII (2) (Feb-19) 1.08 4.60
KRISS (Apr-19) 0.34 3.47
NIST (1) (Jun-19) 1.10 4.50
NIST (2) (Jun-19) 1.15 4.51
JRC (Jul-19) -0.87 4.20
EAA (Sep-19) 0.69 3.77
UBA (Oct-19) -0.27 3.54
METAS (Jul-20) 0.32 2.93
Participating institutes
BIPM.QM-K1 420 nmol/mol

Two results are given for NIST, ISCIII and VNIIM as expected from BIPM.QM-K1 Protocol B.

Comparison
Comparison close
BIPM comparison
Linked comparison
BIPM.QM-K1
Metrology area, Sub-field Chemistry and Biology, Gases
Description Ozone at ambient level
Time of measurements 2007 -
Status Continuous, approved for equivalence
Measurand Amount fraction of ozone in dry air
80 nmol/mol and 420 nmol/mol
Transfer device Measurements made at the BIPM by comparison with the BIPM Reference Photometer SRP27
Comparison type Key Comparison
Consultative Committee CCQM (Consultative Committee for Amount of Substance)
Conducted by BIPM (Bureau International des Poids et Mesures)
Comments First results published on 09 April 2008
The Final Report for each bi-lateral comparsion is listed in the tab "Participants"
Last update: 18 May 2021
Pilot institute BIPM
Bureau International des Poids et Mesures
BIPM - International Organization
Contact person J. Viallon
jviallon@bipm.org
+33 (0) 1 47 07 62 70
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

CHMU/CHMI

Czech Hydrometeorological Institute, Czechia, EURAMET

CMS

ITRI Center for Measurement Standards, Chinese Taipei, APMP

DHMZ-SOUL

Meteorological and Hydrological Service/Calibration Laboratory, Croatia, EURAMET

DMDM

Directorate of Measures and Precious Metals, Serbia, EURAMET

EAA

Umweltbundesamt GmbH, Environmental Agency of Austria, Austria, EURAMET

EMPA (WMO)

Swiss Federal Laboratories for Materials Testing and Research, WMO - International Organization, SIM

INECC

Instituto Nacional de Ecología y Cambio Climático, Mexico, SIM

INRIM

Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET

ISCIII

Instituto de Salud Carlos III, Spain, EURAMET

JRC

Joint Research Centre, European Union, EURAMET

KRISS

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

LNE

Laboratoire national de métrologie et d'essais, France, EURAMET

METAS

Federal Institute of Metrology, Switzerland, EURAMET

MIKES-FMI

Finnish Meteorological Institute, Finland, EURAMET

NILU

Norwegian Institute for Air Research, Norway, EURAMET

NIM

National Institute of Metrology, China, APMP

NIST

National Institute of Standards and Technology, United States, SIM

NMC, A*STAR

National Metrology Centre, Agency for Science, Technology and Research, Singapore, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NPL

National Physical Laboratory, United Kingdom, EURAMET

NPLI

CSIR National Physical Laboratory of India, India, APMP

SE "Ukrmetrteststandard"

State Enterprise "Ukrmetrteststandard", Ukraine, COOMET

UBA

Umweltbundesamt, Federal Environment Agency, Germany, EURAMET

VNIIM

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

VSL

VSL, Netherlands, EURAMET

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      80 nmol/mol

 

The key comparison reference value is the measurement result obtained with the BIPM Photometer SRP27.

 

The degree of equivalence of laboratory i with respect to the key comparison reference value xSRP27 is given by a pair of terms:
Di = xi - xSRP27 and its expanded uncertainty (k = 2), Ui = 2(ui2 + uSRP272)1/2, both expressed in nmol/mol.

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      420 nmol/mol

 

The key comparison reference value is the measurement result obtained with the BIPM Photometer SRP27.

 

The degree of equivalence of laboratory i with respect to the key comparison reference value xSRP27 is given by a pair of terms:
Di = xi - xSRP27 and its expanded uncertainty (k = 2), Ui = 2(ui2 + uSRP272)1/2, both expressed in nmol/mol.

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      80 nmol/mol

 

xi                 measurement result obtained with laboratory i Photometer
ui             combined standard uncertainty of xi

xSRP27     measurement result obtained with the BIPM Photometer SRP27
uSRP27    combined standard uncertainty of xSRP27

Labi xi ui xSRP27 uSRP27 date of 
  nmol/mol nmol/mol nmol/mol nmol/mol measurement
INRIM 79.96 0.20 80.34 0.37 Sep-07
LNE 80.73 0.37 81.03 0.37 May-12
EMPA 81.04 0.47 80.69 0.37 Jun-12
VNIIM (1) 78.63 0.31 78.55 0.29 Jun-14
VNIIM (2) 78.22 0.31 78.17 0.29 Jun-14
NIM 79.86 0.33 79.91 0.36 Jul-14
DMDM 80.05 0.34 80.11 0.46 Jul-15
CMS 86.33 0.38 86.36 0.48 Jun-16
DHMZ 83.17 0.37 83.15 0.48 Aug-16
VSL 78.25 0.40 78.16 0.36 Sep-16
NPL 78.55 0.41 78.37 0.36 Apr-17
NMISA 78.09 0.36 78.11 0.46 Jun-17
INECC 78.67 0.41 78.80 0.36 Sep-17
CHMI 79.12 0.36 79.00 0.36 Sep-17
FMI 78.72 0.36 78.74 0.36 Nov-17
NPLI 80.23 0.37 80.10 0.36 Dec-17
NILU 80.20 0.38 80.15 0.36 Jan-18
NMC, A*STAR 81.16 0.37 80.98 0.47 Jul-18
ISCIII (1) 80.10 0.36 80.20 1.34 Mar-19
ISCIII (2) 78.08 0.36 77.97 1.34 Mar-19
KRISS 79.37 0.33 79.14 0.36 Apr-19
NIST (1) 81.21 0.37 80.97 0.47 Jun-19
NIST (2) 82.75 0.37 82.51 0.47 Jun-19
JRC 79.51 0.44 79.71 0.36 Jun-19
EAA 80.16 0.57 79.92 0.36 Sep-19
UBA 79.14 0.36 79.03 0.36 Oct-19
METAS 76.44 0.35 76.63 0.36 Jul-20

 

Two results are given for NIST, ISCIII and VNIIM as expected from BIPM.QM-K1 Protocol B.

For each laboratory, only the most recent value is retained.

MEASURAND              Ozone mole fraction in dry air


NOMINAL VALUE      420 nmol/mol

 

xi                 measurement result obtained with laboratory i Photometer
ui             combined standard uncertainty of xi

xSRP27     measurement result obtained with the BIPM Photometer SRP27
uSRP27    combined standard uncertainty of xSRP27

 

Labi xi ui xSRP27 uSRP27 date of 
  nmol/mol nmol/mol nmol/mol nmol/mol measurement
INRIM 419.13 0.56 419.17 1.26 Sep-07
LNE 423.18 1.30 422.79 1.27 May-12
EMPA 425.18 1.71 423.57 1.27 Jun-12
VNIIM (1) 420.33 1.25 420.00 1.28 Jun-14
VNIIM (2) 419.04 1.25 418.46 1.27 Jun-14
NIM 419.12 0.98 419.77 1.26 Jul-14
DMDM 413.70 1.24 413.44 1.80 Jul-15
CMS 419.59 1.26 419.40 1.83 Jun-16
DHMZ 417.86 1.26 417.25 1.82 Aug-16
VSL 408.63 1.07 408.55 1.23 Sep-16
NPL 411.75 1.47 410.60 1.23 Apr-17
NMISA 415.95 1.25 415.37 1.81 Jun-17
INECC 415.55 1.47 415.14 1.24 Sep-17
CHMI 416.82 1.25 415.32 1.25 Sep-17
FMI 415.88 1.25 415.77 1.25 Nov-17
NPLI 415.92 1.25 415.88 1.25 Dec-17
NILU 415.72 1.29 415.85 1.25 Jan-18
NMC, A*STAR 422.46 1.27 421.64 1.84 Jul-18
ISCIII (1) 417.75 1.25 418.55 1.91 Mar-19
ISCIII (2) 422.28 1.26 421.20 1.92 Mar-19
KRISS 410.35 1.22 410.01 1.23 Apr-19
NIST (1) 426.46 1.28 425.36 1.85 Jun-19
NIST (2) 427.70 1.28 426.55 1.86 Jun-19
JRC 419.69 1.68 420.56 1.26 Jun-19
EAA 421.93 1.40 421.24 1.26 Sep-19
UBA 417.43 1.25 417.69 1.25 Oct-19
METAS 407.58 0.81 407.25 1.22 Jul-20

 

Two results are given for NIST, ISCIII and VNIIM as expected from BIPM.QM-K1 Protocol B.

For each laboratory, only the most recent value is retained.