MEASURAND : Electrolytic conductivity of an unknown sample of standard
seawater
TEMPERATURE : 25 °C
NOMINAL VALUE : 5.3 S/m
Di = (xi - xR), Di-low, and Di-up the lower and the upper endpoints of the 95.45% interval of confidence of Di expressed in S/m.
MEASURAND : Electrolytic conductivity of an unknown sample of standard
seawater
TEMPERATURE : 15 °C
NOMINAL VALUE : 4.3 S/m
Di = (xi - xR), Di-low, and Di-up the lower and the upper endpoints of the 95.45% interval of confidence of Di expressed in S/m.
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 25 °C
NOMINAL VALUE : 5.3 S/m
Di = (xi - xR), Di-low, and Di-up the lower and the upper endpoints of the 95.45% interval of confidence of Di expressed in S/m.
Results are presented under A4 printable format in Summary Results (PDF file).
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 15 °C
NOMINAL VALUE : 4.3 S/m
Di = (xi - xR), Di-low, and Di-up the lower and the upper endpoints of the 95.45% interval of confidence of Di 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 | Conductivity of aqueous salt solution |
| Time of measurements | 2012 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Conductivity of seawater: 5.3 S/m |
| Parameters | Temperature: 15 °C and 25 °C |
| Transfer device | Seawater sample |
| 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 01 October 2014 Electrolytic conductivity of seawater samples
|
| Pilot institute |
INRIM
Istituto Nazionale di Ricerca Metrologica Italy |
| Contact person | F. Durbiano +39 011 3919 316 |
| Pilot laboratory | |
|---|---|
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| DFM |
Danish Fundamental Metrology A/S, Denmark, EURAMET |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INPL |
National Physical Laboratory of Israel, Israel, N/A |
| MKEH |
Hungarian Trade Licensing Office; now BFKH, Hungary, EURAMET |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| SE "Ukrmetrteststandard" |
State Enterprise "Ukrmetrteststandard", Ukraine, EURAMET |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| SP |
Technical Research Institute of Sweden from 2017 Research Institutes of Sweden AB, Sweden, EURAMET |
| VNIIFTRI |
Institute of Physical Technical and Radiotechnical Measurements, Rosstandart, Russian Federation, COOMET |
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
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" :
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 25 °C
NOMINAL VALUE : 5.3 S/m
| The key comparison reference value, xR, is calculated as the median of the participants' results excluding SMU, and its standard uncertainty, uR, is computed as explained in Section 4.1 of the Final Report. xR-low, and xR-up are the values corresponding to the lower and the upper endpoints of the 95.45% interval of confidence of xR. xR = 5.3024 S/m and uR= 0.0010 S/m; xR-low = 5.3005 S/m and xR-up = 5.3044 S/m. |
|
The degree of equivalence of each laboratory i with respect to the key comparison reference value is given by the following terms all expressed in S/m: |
| No pair-wise degrees of equivalence are computed for this key comparison. |
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 15 °C
NOMINAL VALUE : 4.3 S/m
| The key comparison reference value, xR, is calculated as the median of the participants' results excluding SMU, and its standard uncertainty, uR, is computed as explained in Section 4.1 of the Final Report. xR-low, and xR-up are the values corresponding to the lower and the upper endpoints of the 95.45% interval of confidence of xR. xR = 4.28922 S/m and uR= 0.00074 S/m; xR-low = 4.28774 S/m and xR-up = 4.29068 S/m. |
|
The degree of equivalence of each laboratory i with respect to the key comparison reference value is given by the following terms all expressed in S/m: |
| No pair-wise degrees of equivalence are computed for this key comparison. |
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 25 °C
NOMINAL VALUE : 5.3 S/m
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
ULabi : expanded uncertainty (level of confidence of 95.45%) of xi
MEASURAND : Electrolytic conductivity of an unknown sample of standard seawater
TEMPERATURE : 15 °C
NOMINAL VALUE : 4.3 S/m
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
ULabi : expanded uncertainty (level of confidence of 95.45%) of xi
