CCQM-K92 and SIM.QM-K92
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 0.05 S/m
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in S/m
Red diamonds: participants in CCQM-K92
Blue squares: participants in SIM.QM-K92 only
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 20 S/m
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in S/m
UINMETRO = 0.845 S/m
CCQM-K92 and SIM.QM-K92
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 0.05 S/m
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in S/m
Dark blue: participants in CCQM-K92
Blue: participants in SIM.QM-K92 only
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 20 S/m
Degrees of equivalence, Di and expanded uncertainty Ui (k = 2), expressed in S/m
Results are presented under A4 printable format in Summary Results (PDF file).
| Metrology area, Sub-field | Chemistry and Biology, Electrochemistry |
| Description | Measurement of electrolytic conductivity |
| Time of measurements | 2013 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Conductivity: 0.05 S/m |
| Transfer device | Dedicated samples |
| Comparison type | Key Comparison |
| Consultative Committee | CCQM (Consultative Committee for Amount of Substance) |
| Conducted by | SIM (Inter-American Metrology System) |
| Comments |
Results published on 23 February 2015 SIM.QM-K92 results are linked to those of CCQM-K92 Electrolytic conductivity
|
| Pilot institute |
INMETRO
Instituto Nacional de Metrologia, Qualidade e Tecnologia Brazil |
| Contact person | F. Barbieri Gonzaga +55 21 2679 9134 |
| Pilot laboratory | |
|---|---|
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| INDECOPI |
Instituto Nacional de Defensa de la Competencia y de la Protección de la Propiedad Intelectual, Peru, SIM |
| INEN |
Servicio Ecuatoriano de Normalización, Ecuador, SIM |
| INM (CO) |
Instituto Nacional de Metrología de Colombia, Colombia, SIM |
This page proposes print-out on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
Please, select items to be printed out, then click on "OK" :
CCQM-K92 and SIM.QM-K92
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 0.05 S/m
| The key comparison reference value, xR, is calculated as the weighted mean of the participants' results excluding outliers, and its standard uncertainty, uR, is calculated as explained on page 15 of the Final Report. |
xR = 0.0500304 S/m and uR = 0.0000061 S/m
|
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (k = 2), |
| There are no pair-wise degrees of equivalence computed for this key comparison. |
| INMETRO and CENAM provide the link between key comparisons CCQM-K92 and SIM.QM-K92 as described on page 8 of the SIM.QM-K92 Final Report. |
|
The degree of equivalence of laboratory i participant in SIM.QM-K92 only relative to the CCQM-K92 key comparison reference value is given by a pair of terms: Di and Ui, its expanded uncertainty (k = 2), both expressed in S/m and computed according to Equations 2 and 3 of the SIM.QM-K92 Final Report. |
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 20 S/m
| The key comparison reference value, xR, is calculated as the weighted mean of the participants' results excluding outliers, and its standard uncertainty, uR, is calculated as explained on page 15 of the Final Report. |
xR = 20.2964 S/m and uR = 0.0039 S/m
|
The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms: Di = (xi - xR) and Ui, its expanded uncertainty (k = 2), |
| There are no paire-wise degrees of equivalence computed for this key comparison. |
CCQM-K92 and SIM.QM-K92
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 0.05 S/m
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 0.05 S/m
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
MEASURAND : Electrolytic conductivity of a KCl solution
NOMINAL VALUE : 20 S/m
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
