CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
Results are presented under A4 printable format in Summary Results (.PDF file).
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
Results are presented under A4 printable format in Summary Results (.PDF file).
| Metrology area, Sub-field | Mass and related quantities, Fluid Flow |
| Description | Hydrocarbon Liquid Flow |
| Time of measurements | 2021 - 2022 |
| Status | Measurements in progress |
| References | |
| Measurand | Liquid Flow |
| Parameters | K factor |
| Transfer device | Positive displacement screw type flow meter (4 inch, KRAL). |
| Comparison type | Key Comparison |
| Consultative Committee | CCM (Consultative Committee for Mass and Related Quantities) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| Pilot institute |
NMIJ AIST
National Metrology Institute of Japan Japan |
| Contact person | Ryouji DOIHARA +81-29-861-6847 |
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" :
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
|
The key comparison reference value, xR, is calculated as the weighted mean of the participants' results for Re = 70 000 and Re = 300 000. For Re = 100 000, xR is calculated as the median. Its expanded uncertainty is UR. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative terms: Di and Ui. Di = (xi - xR). For Re = 70 000 and Re = 300 000 its expanded uncertainty is Ui = (ULab i2 - UR2)1/2. For Re = 100 000 the uncertainty was calculated using Monte carlo methods. |
| The degree of equivalence between two laboratories i and j may be calculated approximately by Dij = (Di - Dj) and the associated expanded uncertainty Uij = (ULab i2 + ULab j2)1/2. |
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
|
The key comparison reference value, xR, is calculated as the weighted mean of the participants' results for Re = 70 000 and Re = 300 000. For Re = 100 000, xR is calculated as the median. Its expanded uncertainty is UR. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative terms: Di and Ui. Di = (xi - xR). For Re = 70 000 and Re = 300 000 its expanded uncertainty is Ui = (ULab i2 - UR2)1/2. For Re = 100 000 the uncertainty was calculated using Monte carlo methods. |
| The degree of equivalence between two laboratories i and j may be calculated approximately by Dij = (Di - Dj) and the associated expanded uncertainty Uij = (ULab i2 + ULab j2)1/2. |
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
|
The key comparison reference value, xR, is calculated as the weighted mean of the participants' results for Re = 70 000 and Re = 300 000. For Re = 100 000, xR is calculated as the median. Its expanded uncertainty is UR. |
| The degree of equivalence of laboratory i with respect to the key comparison reference value is given by a pair of terms, both expressed in relative terms: Di and Ui. Di = (xi - xR). For Re = 70 000 and Re = 300 000 its expanded uncertainty is Ui = (ULab i2 - UR2)1/2. For Re = 100 000 the uncertainty was calculated using Monte carlo methods. |
| The degree of equivalence between two laboratories i and j may be calculated approximately by Dij = (Di - Dj) and the associated expanded uncertainty Uij = (ULab i2 + ULab j2)1/2. |
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
xi : measurement result reported by laboratory i
ULab i : expanded uncertainty of xi
Relative K factors (xi) obtained by the all participants. Numerical results are listed in Appendix A of the CCM.FF-K2.2015 Final Report.
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
xi : measurement result reported by laboratory i
ULab i : expanded uncertainty of xi
Relative K factors (xi) obtained by the all participants. Numerical results are listed in Appendix A of the CCM.FF-K2.2015 Final Report.
CCM.FF-K2.2015 Hydrocarbon liquid flow
Measurand: relative K factor at a specific Reynolds number
Transfer instrument: screw type positive displacement flow meter
xi : measurement result reported by laboratory i
ULab i : expanded uncertainty of xi
Relative K factors (xi) obtained by the all participants. Numerical results are listed in Appendix A of the CCM.FF-K2.2015 Final Report.
