BIPM.L-K11, APMP.L-K11 and APMP.L-K11.1
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 633 nm (recommended frequency: 473 612 353 604 kHz)
No graph of equivalence is drawn up for these comparisons.
The graph of measurements is available from the page "Laboratory Individual Measurements"." .< FONT>
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 543 nm (recommended frequency: 551 579 908 725 kHz)
No graph of equivalence is drawn up.
BIPM.L-K11, APMP.L-K11 and APMP.L-K11.1
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 633 nm (recommended frequency: 473 612 353 604 kHz)
No degrees of equivalence are computed for these comparisons.
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 543 nm (recommended frequency: 551 579 908 725 kHz)
No degrees of equivalence are computed.
| Metrology area, Sub-field | Length, Laser Frequencies |
| Description | Comparison of primary wavelength standards |
| Time of measurements | 2004 - 2006 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Absolute frequency Wavelengths: 633 nm and 543 nm |
| Comparison type | Key Comparison |
| Consultative Committee | CCL (Consultative Committee for Length ) |
| Conducted by | BIPM (Bureau International des Poids et Mesures) |
| Comments | This comparison has been classified as superseded by the CCL and was placed in the KCDB archives on 6 January 2016. Measurements in key comparison BIPM.L-K11 were organised as campaigns that take place at the BIPM twice a year, respectively designated as "CI-20xy" and "CII-20xy" for year 20xy: CI-2004 status: Approved by the CCL CII-2004 status: Approved by the CCL CI-2005 status: Approved by the CCL CII-2005 status: Approved by the CCL CI-2006 status: Approved by the CCL CII-2006 status: Approved by the CCL Three other measurements took place at the BIPM (Standard NIM/L2 at 543 nm) in November 2005, at NMIJ (Standard NRLM-03 at 633 nm) in November 2004, and at UME (Standard UME-L3 at 633 nm) in June 2005. They are referred to as "Additional measurements" in the following. In addition, a number of measurements have been taken in the framework of key comparison APMP.L-K11 held in NIM, China, in 2004. First results published on 08 November 2005 New BIPM.L-K11 data and APMP.L-K11 data published on 17 August 2007 APMP.L-K11.1 data published on 10 January 2012 |
| Pilot institute |
BIPM
Bureau International des Poids et Mesures BIPM - International Organization |
| Contact person | L. Robertsson +33 (0) 1 45 07 70 53 |
| Pilot laboratory | |
|---|---|
| BIPM |
Bureau International des Poids et Mesures, BIPM - International Organization, N/A |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| May 2006, 633 nmStandard CEM2 |
| DFM |
Danish Fundamental Metrology A/S, Denmark, EURAMET |
| May 2005, 633 nmStandard DK1 |
| EIM |
Hellenic Institute of Metrology, Greece, EURAMET |
| May 2005, 633 nmStandard EIM-1 |
| INM |
National Institute of Metrology, Romania, EURAMET |
| May 2005, 633 nmStandard INM PHT/HE/97 |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| Nov 2006, 633 nmStandard INRIM 4/P |
| IPQ |
Instituto Portugues da Qualidade, Portugal, EURAMET |
| May 2004, 633 nmStandard IPQ2 | |
| May 2006, 633 nmStandard IPQ3 |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| Nov 2006, 633 nmStandard KRISS-R061 |
| NIM |
National Institute of Metrology, China, APMP |
| Nov 2004, 633 nmStandard NIM-D1 | |
| Nov 2005, 543 nmStandard NIM/L2 |
| NIS |
National Institute for Standards, Egypt, AFRIMETS |
| May 2004, 633 nmStandard NIS-165 | |
| Nov 2006, 633 nmStandard NIS-165 |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| Nov 2004, 633 nm Standard NRLM-03 at NMJ |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
| May 2004, 633 nmStandard CSIR-04 |
| NPLI |
CSIR National Physical Laboratory of India, India, APMP |
| Nov 2005, 633 nmStandard NPL-I(1) |
| SMU |
Slovensky Metrologicky Ustav, Slovakia, EURAMET |
| May 2005, 633 nmStandard SMU-1 |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
| Jun 2005, 633 nmStandard UME-L3 at UME | |
| Nov 2006, 633 nmStandard UME-L3 |
| VNIIM |
D.I. Mendeleyev Institute for Metrology, Rosstandart, Russian Federation, COOMET |
| May 2004, 633 nmStandard VNIIM2 |
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Please, select items to be printed out, then click on "OK" :
BIPM.L-K11, APMP.L-K11 and APMP.L-K11.1
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 633 nm (recommended frequency: 473 612 353 604 kHz)
No key comparison reference value is computed.
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 543 nm (recommended frequency: 551 579 908 725 kHz)
No key comparison reference value is computed.
BIPM.L-K11, APMP.L-K11 and APMP.L-K11.1
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 633 nm (recommended frequency: 473 612 353 604 kHz)
dfi : absolute frequency measured for Standard i, shifted by f0 = 473 612 353 000 kHz, dfi = fi - f0
ui1 : standard uncertainty stemming from the measurement of Standard i
ui2 : estimated uncertainty propagated from the uncertainty in the values of the working parameters for Standard i
uic : root-sum-square of ui1 and ui2, given at a confidence level of 68 % assuming a large number of degrees of freedom
| Laboratory | Standard i | dfi / kHz |
ui1 |
ui2 / kHz |
uic / kHz |
| NIS |
NIS-165 |
603.8 |
0.16 |
1.7 |
1.7 |
| IPQ |
IPQ2 |
602.7 |
0.91 |
2.0 |
2.2 |
| VNIIM |
VNIIM2 |
603.6 |
0.13 |
0.8 |
0.8 |
| NMISA |
CSIR-04 |
599.0 |
0.14 |
3.3 |
3.3 |
| NIM |
NIM-D1 |
595.1 |
0.09 |
1.9 |
1.9 |
| LNE-INM |
INM9 |
602.3 |
0.04 |
1.6 |
1.6 |
| NMi-VSL |
NMi-5 |
597.6 |
0.22 |
2.3 |
2.3 |
| SP |
SP2 |
602.9 |
0.73 |
6.8 |
6.8 |
| DFM |
DK1 |
607.2* |
0.28 |
2.1 |
2.1 |
| EIM |
EIM-1 |
610.7 |
0.26 |
2.0 |
2.0 |
| INM(RO) |
INM PHT/HE/97 |
612.7 |
0.18 |
4.1 |
4.1 |
| SMU |
SMU-1 |
606.9 |
0.20 |
2.4 |
2.4 |
| NMIJ | NRLM-03 |
607.2 |
0.70 |
5.3 |
5.3 |
| UME | UME-L3 |
600.6 |
0.10 |
1.2 |
1.2 |
| NML-SIRIM | NML-SIRIM-1 |
607.7 |
0.08 |
2.2 |
2.2 |
| CEM | CEM2 |
609.1 |
0.09 |
2.0 |
2.0 |
| IPQ | IPQ3 |
601.5 |
0.22 |
2.5 |
2.5 |
| NPLI | NPL-I(1) |
607.1 |
0.07 |
2.4 |
2.4 |
| INRIM | INRIM 4/P |
605.7 |
0.10 |
2.8 |
2.8 |
| LNE-INM | INM 125 |
605.3 |
0.16 |
1.8 |
1.8 |
| KRISS | KRISS-R061 |
609.2 |
0.18 |
1.5 |
1.5 |
| NIS | NIS-165 |
602.6 |
0.14 |
2.0 |
2.0 |
| UME | UME-L3 |
602.3 |
0.19 |
1.1 |
1.1 |
| NIM | NIM-D1 |
595.5 |
0.7 |
1.9 |
2.0 |
| NMIJ | NRLM-03 |
606.5 |
1.5 |
5.1 |
5.3 |
| NMISA | CSIR-04 |
598.2 |
1.0 |
3.3 |
3.4 |
| NML-SIRIM | NML-SIRIM-1 |
609.0 |
0.7 |
1.9 |
2.0 |
| SCL | SCL-1 |
605.5 |
0.8 |
3.4 |
3.5 |
| NIMT | NIMT-1 |
609.7 |
1.1 |
2.0 |
2.3 |
| NIM | NIM-C4 |
606.7 |
1.6 |
2.1 |
2.6 |
| MSL | MSL-1 |
604.5 |
0.7 |
2.1 |
2.2 |
| CMS/ITRI | NML-4 |
608.9 |
1.3 |
1.9 |
2.3 |
| KRISS | KRISS-R061 |
609.7 |
0.12 |
1.75 |
1.75 |
| VMI-STAMEQ | VMI-V01-TB1.01 |
609.6 |
0.17 |
1.78 |
1.79 |
* value corrected for a known offset of -2.1 kHz
In green: lasers having been measured in APMP.L-K11
In pink: lasers having been measured in APMP.L-K11.1
This data is also available in Summary Results (PDF file presented under A4 printable format).
Unless otherwise stated, in the final numbers presented here, rounding has been applied according to ISO-31-0 Annex B Rule B.
GRAPH OF MEASUREMENTS: dfi and uic, expressed in kHz
Click on the graph to have a closer view:
Full line: CCL recommended value dfR = 604 kHz
Dash lines: corresponding standard uncertainty uR = 10 kHz
MEASURAND : Absolute frequency of the reference component of the corresponding recommended radiation for the practical realization of the definition of the metre
WAVELENGTH: 543 nm (recommended frequency: 551 579 908 725 kHz, with standard uncertainty 25 kHz)
dfi : absolute frequency measured for Standard i, shifted by f0 = 551 579 908 725 kHz, dfi = fi - f0
ui1 : standard uncertainty stemming from the measurement of Standard i
ui2 : estimated uncertainty propagated from the uncertainty in the values of the working parameters for Standard i
uic : root-sum-square of ui1 and ui2, given at a confidence level of 68 % assuming a large number of degrees of freedom
| Laboratory | Standard i | dfi / kHz |
ui1 |
ui2 / kHz |
uic / kHz |
| NIM |
NIM/L2 |
-49.0 |
1.2 |
46 |
46 |
Unless otherwise stated, in the final numbers presented here, rounding has been applied according to ISO-31-0 Annex B Rule B.
No graph is given here since only one result is available.
