CCPR-K3.2014
MEASURAND Luminous intensity
Degrees of equivalence represented by Di = (xI - xR)/xR and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in (cd/V)/(cd/V).
CCPR-K3.2014
MEASURAND Luminous intensity
Degrees of equivalence represented by Di = (xI - xR)/xR and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in (cd/V)/(cd/V).
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
(cd/V)/(cd/V) |
(cd/V)/(cd/V) |
(cd/V)/(cd/V) |
||
| NMIJ | 0.0047 | 0.0051 | ||
| NIM | 0.0002 | 0.0032 | ||
| PTB | -0.0004 | 0.0030 | ||
| METAS | -0.0006 | 0.0061 | ||
| NIST | 0.0006 | 0.0043 | ||
| NMIA | -0.0018 | 0.0029 | ||
| VNIIOFI | -0.0073 | 0.0048 | ||
| IO-CSIC | -0.0011 | 0.0061 | ||
| NPL | 0.0034 | 0.0032 | ||
| NMISA | -0.0093 | 0.0132 | ||
| NRC | 0.0051 | 0.0123 |
| Metrology area, Sub-field | Photometry and Radiometry, Photometry |
| Description | Luminous intensity |
| Time of measurements | 2022 - 2023 |
| Status | Measurements in progress |
| References | |
| Measurand | Luminous intensity of an incandescent lamp in a specified direction from a defined point on a reference plane defined by the plane of the lamp filament |
| Parameters | Lamp geometric alignment parameters Lamp DC electrical current Correlated colour temperature |
| Transfer device | Transfer standard incandescent lamps |
| Comparison type | Key Comparison |
| Consultative Committee | CCPR (Consultative Committee for Photometry and Radiometry) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| RMO Internal Identifier | EURAMET 1505 |
| Pilot institute |
METAS
Federal Institute of Metrology Switzerland |
| Contact person | Florian Stuker +41583870120 |
| Pilot laboratory | |
|---|---|
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| BAM |
Bundesanstalt für Materialforschung und -prüfung, Germany, EURAMET |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| BIM |
Bulgarian Institute of Metrology, Bulgaria, EURAMET |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| CHMU/CHMI |
Czech Hydrometeorological Institute, Czechia, EURAMET |
| DMDM |
Directorate of Measures and Precious Metals, Serbia, EURAMET |
| ENEA-INMRI |
Istituto Nazionale di Metrologia delle Radiazioni Ionizzanti, Italy, EURAMET |
| FGI |
Finnish Geospatial Research Institute, Finland, EURAMET |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| IFIN-HH |
"Horia Hulubei" National Institute of Research and Development for Physics and Nuclear Engineering, Romania, EURAMET |
| IH-LQPM |
Instituto Hidrográfico - Laboratório de Química e Poluição do Meio Marinho, Portugal, EURAMET |
| IRA |
Institut Universitaire de Radiophysique Appliquée, Switzerland, EURAMET |
| LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
| MRC MI-UAL |
Marmara Research Center, Materials Institute - Underwater Acoustics Laboratory, Türkiye, EURAMET |
| RISE |
Research Institutes of Sweden AB, Sweden, EURAMET |
| SASO-NMCC |
National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| UzNIM |
Uzbek National Institute of Metrology, Uzbekistan, COOMET |
| VSL |
VSL, Netherlands, EURAMET |
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CCPR-K3.2014
MEASURAND Luminous intensity
The key comparison reference value xR and its associated standard uncertainty uR were calculated by applying a Mandel-Paule method to the participant results, those of the NMISA and LNE/LCE-Cnam excluded:
xR = 86.256 cd/V uR = 0.059 cd/V
The degree of equivalence of laboratory i relative to the key comparison reference value xR is given by a pair of terms, Di = (xI - xR)/xR and its expanded uncertainty Ui at a 95 % level of confidence where Ui = 2 ui, both expressed in (cd/V)/(cd/V).
CCPR-K3.2014
MEASURAND Luminous intensity
The measurement data are listed in Appendix D of the CCPR-K3.2014 Final Report.
