MEASURAND : Mass fraction of Pb in wine
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in relative terms
MEASURAND : Mass fraction of Pb in wine
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in ng/g, and in relative terms
Results are presented under A4 printable format in Summary Results (PDF file).
| Metrology area, Sub-field | Chemistry and Biology, Inorganics |
| Description | Lead in wine |
| Time of measurements | 2011 - 2012 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Mass fraction of Pb in wine: 2 ng/g to 25 ng/g |
| Transfer device | Labelled bottles of 100 mL of the wine material |
| 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 15 April 2013 Lead in wine |
| Pilot institute |
CMQ
Chemical Metrology Center for Water and Foodstuffs, Foundation Chile Chile |
| Contact person | G. Massiff +56 02 242 8181 |
| Pilot laboratory | |
|---|---|
| CMQ |
Chemical Metrology Center for Water and Foodstuffs, Foundation Chile, Chile, SIM |
| EXHM/GCSL-EIM |
National Laboratory of Chemical Metrology/GCSL - Hellenic Institute of Metrology, Greece, EURAMET |
| HSA |
Health Science Authority, Singapore, APMP |
| INDECOPI |
Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual, Peru, SIM |
| INM |
National Institute of Metrology, Romania, EURAMET |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| LGC |
Laboratory of the Government Chemist, United Kingdom, EURAMET |
| MIRS/IJS/F-2,O-2 |
MIRS/Jozef Stefan Institute/Low and Medium Energy Physics F2, Environmental Sciences O2, Slovenia, EURAMET |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
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MEASURAND : Mass fraction of Pb in wine
| The key comparison reference value, xR, and its standard uncertainty, uR, are calculated as explained in section 10 of the Final Report. |
xR = 12.12 ng/g and uR = 0.03 ng/g
|
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: |
| There are no paire-wise degrees of equivalence computed for this key comparison. |
MEASURAND : Mass fraction of Pb in wine
xi : result of measurement carried out by laboratory i
ui : standard uncertainty reported by laboratory i
ki : coverage factor reported by laboratory i
ULabi : expanded uncertainty reported by laboratory i
INM from Romania agreed that their results will not be used in the KCRV estimation. They are not reported here.
INMETRO sent revised values on 25 September 2012: (11.85 ± 0.50) ng/g, but the KCRV calculations were carried out with the original values.
