CCPR-K3.a, CCPR-K3.a.1, EURAMET.PR-K3.a, EURAMET.PR-K3.a.1 and COOMET.PR-K3.a
MEASURAND Luminous intensity
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-2.
CCPR-K3.a, CCPR-K3.a.1, EURAMET.PR-K3.a, EURAMET.PR-K3.a.1 and COOMET.PR-K3.a
MEASURAND Luminous intensity
Degrees of equivalence represented by Di = (xI - xR) and its expanded uncertainty Ui at a 95 % level of confidence, both expressed in 10-2.
| LABi | Di | Uneg,i | Upos,i | |
|---|---|---|---|---|
10-2 |
10-2 |
10-2 |
||
| LNE-INM/Cnam | 0.89 | 0.60 | ||
| NMISA | 0.51 | 0.88 | ||
| NMIA | -0.07 | 0.60 | ||
| NMIJ | -0.09 | 0.56 | ||
| INRIM | -0.43 | 0.90 | ||
| IO-CSIC | -0.48 | 0.72 | ||
| NIM | -0.16 | 0.48 | ||
| NIST | 0.12 | 0.48 | ||
| NPL | 0.04 | 0.30 | ||
| NRC | 0.19 | 1.06 | ||
| METAS | -0.50 | 1.12 | ||
| MKEH | 0.05 | 0.94 | ||
| PTB | -0.31 | 0.40 | ||
| SMU | -0.36 | 1.40 | ||
| VNIIOFI | 0.33 | 0.92 | ||
| INTI | -0.25 | 0.74 | ||
| BIPM | 0.30 | 1.00 | ||
| NMC, A*STAR | 0.03 | 0.33 | ||
| BIM | 0.04 | 1.50 | ||
| BelGIM | -0.53 | 0.72 | ||
| SP | -0.61 | 0.93 | ||
| UME | 0.43 | 1.50 | ||
| BEV | -0.26 | 1.10 | ||
| VSL | -0.54 | 0.64 | ||
| CMI | -0.10 | 0.80 | ||
| IPQ | 0.57 | 1.60 | ||
| DMDM | 0.22 | 1.20 | ||
| GUM | 0.33 | 1.10 | ||
| INM (RO) | -0.21 | 1.40 | ||
| SMU | 0.42 | 0.72 | ||
| MIKES | -0.32 | 0.44 | ||
| INM (RO) | -0.72 | 0.90 | ||
| BelGIM | -0.57 | 0.94 | ||
| NSC IM | -0.66 | 1.28 | ||
| KazInMetr | -0.22 | 0.94 |
| Metrology area, Sub-field | Photometry and Radiometry, Photometry |
| Description | Luminous intensity |
| Time of measurements | 2008 - 2011 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Luminous intensity |
| Transfer device | Five different lamp transfer standards |
| 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 | EUROMET Project No 569 |
| Comments | Results published on 7 July 2014. |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Armin Sperling +49 531 592 4100 |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| BIM |
Bulgarian Institute of Metrology, Bulgaria, EURAMET |
| BelGIM |
Belarussian State Institute for Metrology, Belarus, COOMET |
| CMI |
Czech Metrology Institute, Czechia, EURAMET |
| DMDM |
Directorate of Measures and Precious Metals, Serbia, EURAMET |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| INM |
National Institute of Metrology, Romania, EURAMET |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| IPQ |
Instituto Portugues da Qualidade, Portugal, EURAMET |
| LNE-LCM/Cnam |
Conservatoire National des Arts et Métiers/Laboratoire Commun de Métrologie, France, EURAMET |
| MIKES |
VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus, Finland, EURAMET |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, 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" :
CCPR-K3.a, CCPR-K3.a.1, EURAMET.PR-K3.a, EURAMET.PR-K3.a.1 and COOMET.PR-K3.a
MEASURAND Luminous intensity
The individual measurements, xi, of the participating laboratories take the form of ratios which depend on the reference used at the pilot laboratory. This is cancelled out by normalization using the key comparison reference value, xR. This procedure leads to normalized individual measurements: xi / xR.
CCPR-K3.a
The key comparison reference value, xR, is calculated as the weighted average of the invidual results xi, weighted by the inverse square of the individual standard uncertainties, ui, with the application of a minimum cutoff of 0.25%. The INTI and the BIPM are excluded from the calculation of xR. The standard uncertainty of xR is uR = 0.09 %. It is negligible compared to the ui values.
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = (xi - xR) / xR and Ui, its expanded uncertainty
(k = 2), both expressed in relative units. Ui = 2ui.
Linking CCPR-K3.a.1 to CCPR-K3.a
The link to the key comparison CCPR-K3.a is made though CSIRO-NML (now NMIA) that participated in both comparisons, see Section 9 of the CCPR-K3.a.1 Final Report.
Linking EURAMET.PR-K3.a to CCPR-K3.a
The link to the key comparison CCPR-K3.a is realized through the common participation of LNE-INM/Cnam, INRiM (named "BNM-INM" and "IEN" at the time of the CCPR key comparison) and PTB that participated in both comparisons, see EURAMET.PR-K3.a Final Report.
Linking EURAMET.PR-K3.a.1 to CCPR-K3.a
The link to the key comparison CCPR-K3.a is realized through the common participation of LNE see EURAMET.PR-K3.a.1 Final Report.
Linking COOMET.PR-K3.a to CCPR-K3.a
The link to the key comparison CCPR-K3.a is realized through the common participation of SMU and VNIIOFI, see COOMET.PR-K3.a Final Report.
CCPR-K3.a, CCPR-K3.a.1, EURAMET.PR-K3.a, EURAMET.PR-K3.a.1 and COOMET.PR-K3.a
MEASURAND Luminous intensity
For individual measurements see Final Reports.
