MEASURAND: Water volume
NOMINAL VALUE: 100 mL
TRANFERT INSTRUMENTS: Three glass pycnometers, serial numbers TS 03.01.12, TS 03.01.16 and TS 03.01.17
Graphs of equivalence obtained for each pycnemeter:
offset Di and expanded uncertainty Ui (k = 2) expressed in 10-6
MEASURAND: Water volume
NOMINAL VALUE: 100 mL
TRANFERT INSTRUMENTS: Three glass pycnometers, serial numbers TS 03.01.12, TS 03.01.16 and TS 03.01.17
Degrees of equivalence relative to the key comparison reference values obtained for each pycnometer: Di and Ui (k = 2) expressed in 10-6
Results are presented under A4 printable format in Summary Results (PDF file).
| Metrology area, Sub-field | Mass and related quantities, Fluid Flow |
| Description | Liquid volume |
| Time of measurements | 2012 - 2014 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Liquid volume: 100 mL and 20 L |
| Transfer device | Two specially designed stainless steel pipettes for 20 L and three commercially available pycnometers for 100 mL |
| 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 31 March 2015 Liquid volume using 20 L pipettes and 100 mL pycnometers
|
| Pilot institute |
CENAM
Centro Nacional de Metrologia Mexico |
| Contact person | R. Arias +52 442 2110571 |
| Pilot laboratory | |
|---|---|
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| IPQ |
Instituto Portugues da Qualidade, Portugal, EURAMET |
| KEBS |
Kenya Bureau of Standards, Kenya, AFRIMETS |
| NIM |
National Institute of Metrology, China, APMP |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| SP |
Technical Research Institute of Sweden from 2017 Research Institutes of Sweden AB, Sweden, EURAMET |
| VSL |
VSL, Netherlands, EURAMET |
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: Water volume
NOMINAL VALUE: 100 mL
TRANFERT INSTRUMENTS: Three glass pycnometers, serial numbers TS 03.01.12, TS 03.01.16 and TS 03.01.17
|
The key comparison reference values are basically obtained from the weighted means of the results, including a consistency check, as explained on page 9 of the Final Report. They are denoted xR with standard uncertainties uR. |
|
For each pycnometer, the degree of equivalence of laboratory i with respect to the key comparison reference value is computed as indicated in the headings of Tables 16 to 18. They are expressed in relative terms. |
| Pair-wise degrees of equivalence are available from Section 9 of the Final Report. |
MEASURAND: Water volume
NOMINAL VALUE: 100 mL
TRANFERT INSTRUMENTS: Three glass pycnometers, serial numbers TS 03.01.12, TS 03.01.16 and TS 03.01.17
xi: volume measured by laboratory i
ui: standard uncertainty of xi
