Comparison
Comparison close
Results

CCM.FF-K4.2.2011, EURAMET.M.FF-K4.2.2014, and AFRIMETS.M.FF-K4.2.2015

MEASURAND                            Water volume

NOMINAL VALUE                    100 µL

 

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

 

 

 

 

Five micropipettes, serial numbers 354828Z, 354853Z, 354864Z, 354868Z and 354872Z, were used in CCM.FF-K4.2.2011.

CCM.FF-K4.2.2011 and EURAMET.M.FF-K4.2.2014:   Data obtained for 354828Z are listed here, used in both comparisons. For other micro- pipettes, see the Final Reports.

CCM.FF-K4.2.2011and AFRIMETS.M.FF-K4.2.2015:    Data obtained for 354868Z are listed here for AFRIMETS.M.FF-K4.2.2015, used in CCM.FF-K4.2.2011and AFRIMETS.M.FF-K4.2.2015. For other micro- pipettes, see the Final Reports.

Comparison
Comparison close
Results

CCM.FF-K4.2.2011, EURAMET.M.FF-K4.2.2014, and AFRIMETS.M.FF-K4.2.2015

MEASURAND                            Water volume

NOMINAL VALUE                    100 µL

 

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

 

 

 

 

Five micropipettes, serial numbers 354828Z, 354853Z, 354864Z, 354868Z and 354872Z, were used in CCM.FF-K4.2.2011.

CCM.FF-K4.2.2011 and EURAMET.M.FF-K4.2.2014:   Data obtained for 354828Z are listed here, used in both comparisons. For other micro- pipettes, see the Final Reports.

CCM.FF-K4.2.2011and AFRIMETS.M.FF-K4.2.2015:    Data obtained for 354868Z are listed here for AFRIMETS.M.FF-K4.2.2015, used in CCM.FF-K4.2.2011and AFRIMETS.M.FF-K4.2.2015. For other micro- pipettes, see the Final Reports.

CCM.FF-K4.2.2011
Metrology area, Sub-field Mass and related quantities, Fluid Flow
Description Liquid volume
Time of measurements 2011 - 2012
Status Approved for equivalence
Final Reports of the comparisons
Measurand Liquid volume: 100 µL
Transfer device Five 100 µL micropipettes
Comparison type Key Comparison
Consultative Committee CCM (Consultative Committee for Mass and Related Quantities)
Conducted by CCM (Consultative Committee for Mass and Related Quantities)
Comments

Results published on 01 February 2013

Results of EURAMET.M.FF-K4.2.2014 are linked to those of CCM.FF-K4.2.2011

Liquid volume using five 100 µL micropipettes

Pilot institute IPQ
Instituto Portugues da Qualidade
Portugal
Contact person E. Batista
ebatista@ipq.pt
+35 1 212 948 167
First Name Last Name
wwww@ww.www +356719836 Institute 1 Institute 1 Khmelnitskiy
Pilot laboratory
IPQ

Instituto Portugues da Qualidade, Portugal, EURAMET

CENAM

Centro Nacional de Metrologia, Mexico, SIM

INMETRO

Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM

LNE

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

NIM

National Institute of Metrology, China, APMP

NMISA

National Metrology Institute of South Africa, South Africa, AFRIMETS

NMO

National Measurement Office, now National Measurement and Regulation Office, NMRO, United Kingdom, EURAMET

UME

TÜBITAK Ulusal Metroloji Enstitüsü, Turkey, EURAMET

Comparison
Comparison close
Results

CCM.FF-K4.2.2011, EURAMET.M.FF-K4.2.2014, and AFRIMETS.M.FF-K4.2.2015

MEASURAND                            Water volume

NOMINAL VALUE                    100 µL

 

The key comparison reference value xR and the associated expanded uncertainty (k = 2) UR for each pipette is basically obtained from the weighted means of the results.

For each micropipette, the degree of equivalence of laboratory i with respect to the key comparison reference value is computed according to equations 8, 9 and 10 on page 11 of the Final Report, and is given by a pair of terms, both expressed in µL: Di and Ui, its expanded uncertainty (k = 2).

 

Linking EURAMET.M.FF-K4.2.2014 to CCM.FF-K4.2.2011

TRANFERT INSTRUMENTS: Two micropipettes, serial numbers 354828Z and 354853Z

EURAMET.M.FF-K4.2.2014 is linked to CCM.FF-K4.2.2011 via IPQ, having participated in both comparisons.

 

Linking AFRIMETS.M.FF-K4.2.2015 to CCM.FF-K4.2.2011

TRANFERT INSTRUMENTS: Two micropipettes, serial numbers 354868Z and 354872Z

AFRIMETS.M.FF-K4.2.2015 is linked to CCM.FF-K4.2.2011 via IPQ, having participated in both comparisons.

Comparison
Comparison close
Results

CCM.FF-K4.2.2011, EURAMET.M.FF-K4.2.2014, and AFRIMETS.M.FF-K4.2.2015

MEASURAND                            Water volume

NOMINAL VALUE                    100 µL

 

CCM.FF-K4.2.2011

Lab i       volume measured by laboratory i after correction to the standard atmospheric pressure
Lab i        expanded uncertainty (k = 2) of Lab i

 

EURAMET.M.FF-K4.2.2014

TRANFERT INSTRUMENTS: Two micropipettes, serial numbers 354828Z and 354853Z

The measurement results obtained in EURAMET.M.FF-K4.2.2014 are listed in table 10 on page 11 of the EURAMET.M.FF-K4.2.2014 Final report.

 

AFRIMETS.M.FF-K4.2.2015

TRANFERT INSTRUMENTS: Two micropipettes, serial numbers 354868Z and 354872Z

The measurement results obtained in AFRIMETS.M.FF-K4.2.2015 are listed in the AFRIMETS.M.FF-K4.2.2015 Final report.